Barbara D. Simpson, David T. Hansen, Chris Curlis, Jeff Milliken, U.S. Bureau of Reclamation, Mid Pacific Region, U.S. Fish and Wildlife Service, Sacramento Office December 2003 1.0 - No restrictions on use - available for general use vector digital data Edition numbers depict version. Previous versions of this database did not have an edition number assigned. Do not use previous editions of this database. Editions will be archived and made available upon request. \\IBR2MPNTGIS01\gis_proj01\cvhm\Geolib\Habitat2000_20040127\Habitat_DVD\HAB2000.mdb Land cover mapping for 1993 and 2000 with land cover change in the Central Valley, California. Planning tool for identifying change areas within the Central Valley, between 1993 and 2000. THIS IS VERSION / EDITION 1 as reviewed in September, 2003. Land cover map for 1993 and 2000 change in land cover for 2000 of the Central Valley, California. This database is based on spectral polygons for the year 2000 generated from thematic mapper (TM) satellite scenes and other imagery with a minimum polygon size of 2.5 acres. Source imagery for 2000 is based on 30 meter pixel size. The minimum polygon size represents the smallest delineation captured from image segmentation of the 2000 satellite scenes. The threshold for aggregation of contiguous spectrally similar polygons was eleven 30 meter pixels. These spectral polygons were used to capture information from other data sources. It is also the smallest delineation examined in review of imagery or aerial photography for 1993 and 2000 or from field visits. It may not represent the minimum size of inclusions of other land cover types that may occur within a delineation. The database contains land cover assignments for 1993 based on the 1993 base map created from 6 separate source datasets. The data for 1993 includes two additional sources that were not available when the 1993 base map was created. The 1993 base map data is titled "HAB1993". Updates for 2000 land cover are based on information captured from additional sources or from photo interpretation and field work for areas that show spectral change between 1993 and 2000 TM 30 meter satellite scenes. The intent is to match existing statewide land cover and vegetation mapping efforts for change detection, in an integrated and collaborative manner. This data was developed in collaboration with change detection mapping by the U.S. Forest Service USFS) and the California Department of Foresty (CDF). While this dataset supports land cover codes, it will be used for habitat analyis and monitoring. Codes used are based on the California Wildlife Habitat Relationships system (WHR). The database contains codes for both 1993 and for 2000. The codes for 1993 are based on: 1. The 1993 habitat base map (HAB1993), 2. Review of selected areas based on 1993 imagery, 3. Land cover mapping by NOAA for coastal areas and the Sacramento - San Joaquin Delta as part of NOAA; CCAP (Coastal Change Analysis Program) for change between 1986 to 1993, 4. Mapping by USFS and CDF for that time period. The codes for 2000 are based on: 1. Field work for areas showing spectral change between 1993 and 2000, 2. Review of available imagery for 2000 for areas showing spectral change. This imagery ranges from 15 meter panchromatic satellite imagery to 1:24,000 scale color and black and white aerial photography for that time period. 3. Mapping of riparian vegetation at about 1998 maintained as a separate GIS database, 4. Mapping for the 2000 time period by the Endangered Species Recovery Program (ESRP), 5. Mapping by the USFS and CDF for about either time period, or 6. Codes captured for 1993 where no spectral change was identified or codes were no captured from the other sources.. A description of the original source codes and assignments made for the 2000 land cover data is contained in separate HTML documents identified at the end of this section. The source data is also identified in the Data Set Credit setion of this document. This initial development of spectral polygons from the 30 meter TM satellite scenes required processing the scenes in smaller blocks. These blocks are the same processing areas used to develop the 1993 landcover database. However, spectral polygons were developed for only 51 of the original 58 processing areas. The remaining seven processing areas are entirely within the change area for CDF - USFS data. Processing is described under processing steps in the data quality section. The overall data base consists of these 51 processing areas, the database tables for each processing area, and a table HAB2000LEG. This table contains the code explanations for the 1993 and 2000 land cover codes. THIS IS VERSION / EDITION 1 OF THE 2000 DATA. Related documents in HTML or Word formats are: 1. hab2000_attributes.htm - Identifies and describes the attributes of the coverage polygon attribute table and related tables 2. hab2000_legend.htm - Detailed description of the land cover legend used for 1993 and 2000. 3. hab2000_sources.htm - Description of the separate data sources used for this product. 4. hab2000_cwalk.htm - Description of the legends from the separate sources and the cross walk to the 1993 and 2000 legend used in this product. This database is not intended to be used as a land survey or representation of land for conveyance or tax purposes. The database is available to all users that may require this information. Processing methodology is described under the Data Quality section. 2000 ground condition Complete None planned -122.532558 -119.887166 40.198436 37.458224 Columbia Encyclopedia, Sixth Edition - http://www.bartleby.com/65/ Landcover Land Cover Landuse Land Use Habitat Vegetation Change Detection CERES Central Valley of California None. If used, please indicate that the database source was the U.S. Bureau of Reclamation, MPGIS Service Center. Specified access indicates use constraint. Barbara Simpson U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center GIS Specialist mailing and physical address

2800 Cottage Way, MP 450

Sacramento CA 95825 USA (916) 978-5031 (916) 978-5055 bsimpson@mp.usbr.gov 9:00 AM - 3:00 PM M-F Email your request to the above email address hab2000.jpg JPEG Data set created in cooperation with: U.S. Fish and Wildlife Service, Sacramento Office, Ducks Unlimited (DU), Sacramento Office and California Department of Fish and Game, California Department of Water Resources (DWR), California Department of Conservation Farmland Mapping Office (DOC), California Department of Forestry and Fire Protection, California State University Chico, Endangered Species Recovery Program, Fresno, California, Scott Phillips Jones & Stokes Associates, Sacramento, National Oceanographic and Atmospheric Administration. Related documents in HTML or Word formats are: 1. hab2000_attributes.htm - Identifies and describes the attributes of the coverage polygon attribute table and related tables 2. hab2000_legend.htm - Detailed description of the land cover legend used for 1993 and 2000. 3. hab2000_sources.htm - Description of the separate data sources used for this product. 4. hab2000_cwalk.htm - Description of the legends from the separate sources and the cross walk to the 1993 and 2000 legend used in this product. US Bureau of Reclamation Security Classification None None - General use, no restrictions on handling or use Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800 David T. Hansen, U.S. Bureau of Reclamation, Mid Pacific Region, MPGIS 2001 1 tabular digital data Master table of attributes for the 2000 habitat codes. This table may be joined to the polygon coverage with the items CVH1993 and CVH2000. It provides a descriptive legend. USBR; MPGIS 2003 1 Point locations of field notes collected by USBR, Mid Pacific Region between 2001 and 2003. Attributes carry information collected at field sites. Digital databases created within the USBR MPGIS Service Center were reviewed using existing quality standards. Most processing consisted of running sequences of macros using Arc macro language (AML). These are identified in the Processing Steps section. For this data, processing consisted of the following steps with review of areas showing spectral change or other change between 1993 and 2000. 1. The study area consists of 58 processing areas developed originally for the HAB1993 land cover base. Of these 58 processing areas only 51 contain portions of the Central Valley floor or contain areas of interest to Reclamation for change analysis. The remaining seven processing areas are entirely within the change detection area for the California Department of Forestry and Fire Protection / U.S. Forest Service. These were not processed. For the 51 processing areas, raster analysis with zonal statistics was run against raster representations of source data. Depending on the source data, the majority value, variety of values, and counts of area represented were captured. Each source was modified to carry a cross walk value to match the source land cover code with the code used for land cover in the 2000 legend. This values with a descriptive legend are maintained in table HAB2000LEG. Permitted values range from 11 to 99. Values of 98 and 99 represent areas that were not mapped and land cover is unknown. 2. Two overall raster datasets representing spectral change between 1993 and 2000 were developed. An initial raster dataset identified change only in the CVHM change area or the Central Valley floor. A second raster dataset was produced to capture change areas beyond this original area and was used to capture change for all 51 processing areas. Both rasters of spectral change include a mask to exclude areas identified as active agricultural land. These are areas where irrigated agriculture was identified both in 1992 and 1998 from farm land mapping by the California Department of Conservation. 3. Areas showing spectral change were then examined interactively using imagery and scanned aerial photography for 1993 and 2000. An interpretation was made and coded for 1993 and 2000 based on this review with the date and name of the interpreter. Spectral polygons were generally examined that had over 50% of the polygon showing spectral change. Not all spectral polygons showing change were examined for all processing areas. 4. Areas which could not be clearly identified via photo interpretation and other areas were examined in the field between 2001 and 2003. Based on this field visit a land cover assignment was made for 2000 and where possible for 1993. 5. After this review, all processing areas were coded using macro scripts for 1993 and 2000 based on available sources, photo review, and field data. Final assignment of land cover codes for 1993 and 2000 are identified as well as the source for those assignments. Summary tables were prepared identifying changes between 1993 and 2000. A final review was then conducted to validate areas of change. Good Digital databases created within the USBR were reviewed using existing quality standards. For this data, additional review was done of areas showing change between 1993 and 2000. The data for 2000 is based on the 1993 base data with modifications based on: 1. Review of areas showing spectral change, For each processing area, the percent of each polygon showing spectral change is carried as a field PCTCHG in a related table with a common join field of VALUE. 2. Updates to the 1993 base data for areas with 1993 data captured from NOAA. This is primarily coastal areas, San Francisco Bay and adjacent upland areas. The processing areas affected are identified with the descriptions of source data. 3. Detailed riparian mapping along major tributaries of the Sacramento River and some segments of the San Joaquin River. Spectral polygons which occured in areas of detailed riparian mapping carry values greater than 0 in the field RIPAR98 in a related table with a common join field of VALUE. 4. Rice mapping by Ducks Unlimited for 1998. Spectral polygons which occured in areas of rice mapping carry values greater than 0 in the field DU98 in a related table with a common join field of VALUE. 5. Field mapping by the Endangered Species Recovery Program, Fresno California. Spectral polygons which occured in areas of field mapping by the Endangered Species Recovery Program carry values greater than 0 in the field ESRPHAB in a related table with a common join field of VALUE. 6. Change detection mapping by the California Department of Forestry and Fire Protection and the U.S. Forest Service for the northern coast range and the Sierra Nevada. Spectral polygons which occured in areas of this mapping carry values greater than 0 for several fields in a related table with a common join field of VALUE. Field CDF94 carry values from the CDF / USFS data for the time period of mapping pre 1996. Field CDF2K carries values from the CDF / USFS data for the time period post 1996. Values pre 1996 were used to update 1993 data were applicable, and post 1996 values were used in assigning values for 2000. 7. Updates to 1993 habitat values based on an initial block review of the data in 2001. In 2001, the initial data title "HAB1993" was reviewed in blocks using available imagery for that time period. Based on this review, the original 1993 data was either verified or altered. Spectral polygons which occured in areas which had a review in 2001 carry values greater than 0 in the field BLKREV93 in a related table with a common join field of VALUE. Areas showing spectral change or a change in land cover codes between 1993 and later dates were reviewed. Initial review was with satellite imagery or aerial photography. Codes were verified for both 1993 and 2000 image dates. Where code assignment was not clear from the available imagery, field visits were made where possible. These code assignments were captured for the spectral polygons. The main area of focus has been on areas with federal water supply contracts. As a final review, areas showing change were again reviewed and validated. Each processing area carries a separate table that contains all codes and notes made on code assignment for that processing area. Processing areas 16, 17, 28, and 34 were affected by fogs or clouds in the satellite imagery used to generate spectral polygons. Additional imagery was used to generate sets of polygons to replace a portion of the original set of spectral polygons for these processing areas. Data meets accuracy and quality standards within USBR MPGIS Service Center. Errors do exist. Please report any potential errors to the contact provide. This database is not intended to be used as a land survey or representation of land for conveyance or tax purposes. Further details are discussed in the Process Step portion of this metadata. All polygons have been coded into a land cover type for both 1993 and 2000. There are some areas where a land cover value was not captured from any source and these are carried as not mapped (99) which represents No Data areas. The northern portion of the Central Valley habitat boundary has not yet been included and seven processing areas were not developed. These areas fall entirely within the change detection mapping by the California Department of Forestry and Fire Protection and the U.S. Forest Service Change Detection Project. Users are referred to this source for land cover mapping and change detection for these areas. Since development of the 1993 land cover database, additional land cover data became available. None of these additional sources cover the entire area. All processing areas carry attributes for these sources. Where data is not available for a spectral polygon, the attribute value will be 0. These additional sources served as updates to both the land cover assigned in 1993 and the land cover designation for 2000. Similar processing steps were followed for these sources. Cross walks to the CVHM land cover codes were developed for each source. The sources were converted to grids with a snap cover grid of TM2K1_G. The spectral polygon coverage for the processing area was used to capture the majority value from the new source. In some cases, such as riparian mapping, where only a small area was mapped, the percent of the spectral polygon actually covered by the new source was also captured. Additional sources captured in this way include. a. Riparian data for about 1998 (1993 to 1998) for portions of the San Joaquin and Sacramento Valleys from California State University, Chico and Jones & Stokes Associates. b. Endangered Species Recovery Program , Fresno data for 2000 Only data representing field verified data was captured. This data source used many of the same sources from the original CVHM 1993 database. c. California Department of Forestry and Fire Protection / US Forest Service data for 1993 North Coast and Shasta data This is actually replaced by the newer versions available from the change detection program of the U.S. Forest Service and California Department of Forestry and Fire Protection. A small portion of data has been updated for post 1994 as scattered polygons. d. California Department of Forestry and Fire Protection / US Forest Sservice data for about 2000 - The 2000 CDF-USFS data provides not only any updates for the 2000 time period but also flags any change in since 1994 Both landcover type and chage characteristics are captured where this data is available. e. National Oceanographic and Atmospheric Administration coastal mapping data for 1993. This represents an update or revision of the 1993 data for areas primarily along the coast but potentially also for the San Francisco Bay and Delta region. This data is not ready for processing and the affected processing areas will not be run until about March 2003. f. Certainty in classifying 1993 spectral polygons. Values range from 0 to 95 with higher values representing greater certainty in the 1993 label assignment. Coding of 2000 spectral polygons for 1993 and 2000 are part of the fundamental initial products from this processing. The change reports are based on the codes for both 1993 and 2000. As part of the code for each year the source of the code is reported for each spectral polygon. This database represents the most current and accurate understanding of the theme locations. The edition number associated with the database indicates current edition. Any databases not having a specified edition number should not be used. Please request a current copy of this database from the contact provided. Theme data is based on 2000 Landsat satellite scenes registered to the 1:24,000 scale USGS topographic base for the area. These satellite scenes have a 30 meter pixel resolution. Spectral polygon generation used for the based map had a 2.5 acre threshold set for defining the minimum size of these polygons. All raster processing used a common snap grid to ensure co - registration, a common map extent, and a cell size of 30 meters. 60 meters Error in digital capture of boundaries is estimated as 60 meters based on use of the USGS 1:24,000-scale quadrangles for use in registration of the satellite scenes and the pixel size of 30 meters for these scenes. NA U.S. Geological Survey (USGS) 1993 1 raster digital data Merged 2000 Landsat TM 30 meter satellite scenes merged and then processed with IPW public domain software developed by Boston University. 100,000 to 24,000 online 1993 ground condition Varies Varies Topic: Processing for 2000 Change Data for 1993 and 2000 Land Cover Date: September 30, 2003 By: Dave Hansen This is a description of the processing required to produce the 1993 to 2000 land cover database. It includes description of the general process for change reports for the contract areas. The intent of the process is to identify a land cover / land use type for all areas for both 1993 and 2000 and to incorporate all available data for a particular processing area. The area covered is 51 of the original 58 processing areas used for the 1993 habitat database. There were three major phases in the development of the 1993 and 2000 land cover database. Phase one began in the fall of 2001 and ran to the summer of 2002. Phase two began in the fall of 2002 with the incorporation of additional data for both 1993 and 2000. Phase three began in winter of 2003 with adjustments made to spectral polygons for four processing areas and the merging of all processing into a series of steps. These steps will be described together. They are common to all processing areas with exceptions noted. Most of the processing was done with macros using ARC macro language. Some coding for land cover was done internally by macro finalcode2.aml. However, this coding was reviewed interactively by reviewers with available imagery or other data. 2003 David T. Hansen U.S. Bureau of Reclamation, Mid Pacific Region, MPGIS Geospatial Scientist 916-978-5268 916-978-5290 dhansen@mp.usbr.gov Step 1 - Generation of spectral polygons Grids are based on 2000 TM 30 meter imagery with a 2.5 acre minimum polygon size for similar spectral signatures. A macro was run to generate the spectral polygons for the processing area and to produce zonal statistics from other data. Initial grid was snapped to an underlying image grid to ensure a common reference. This snapping process was used for all grids used in processing. Grids were converted into polygon coverage with a unique value for each group of cells having the same value. The unique value for the spectral polygon is carried in the field VALUE. Values range from 1 to 60000 depending on the number of spectral polygons for the processing areas. The snapped grid was used to generate zonal statistics from the following data. 1. Majority and variety values from the CVHM 1993 database for the change area. 2. Majority and variety values from areas showing spectral change masked to exclude agricultural land. 3. The count of 30 meter pixels showing spectral change 1993 to 2000. 4. The count of 30 meter cells with detailed riparian mapping data for 1998. 2002 Step 2 - Initial polygon dataset was then processed with RESELECT to remove the outside bounding polygon generated by the image processing software. All polygons with a GRID-CODE greater than 0 were selected out. 2001 Step 3 -The polygon coverage was set up with initial fields to record summary values and fields for coding land cover in initial review of change areas. A macro added an initial set of attributes to the polygon coverage. Zonal statistics generated in the initial macro were captured to populate fields carrying the land cover mapping from 1993, the percent of the spectral polygon containing change between 1993 and 2000, and the percent of the polygon containing detailed riparian mapping. Between 2001 and May of 2003, processing areas were reviewed with available imagery and aerial photography for change areas based on the criteria that the spectral polygon showed more than 50% of the area containing change. Based on interpretation of the imagery, land cover for 2000 was identified, land cover for 1993 was verified, and areas for field visits were identified. 2001 Step 4 - Capture of field data. Based on initial review of processing areas, locations were identified for field visits. A macro added an attribute to the spectral polygons for field visits and to identify spectral polygons where the land cover captured for 1993 was different than the land cover interpreted for the year 2000. Macros run later in this process added attributes for capturing the data collected in the field visit. A separate point coverage contains the record and data collected in the field visit, FLDNOTE2K_X. 2002 Step 5 - Review of coding of land cover for both 1993 and 2000. A macro was run for additional attributes for review of initially assigned codes and field data. Fields REV2000 and REV1993 represent the main fields for entry of land cover values for both years. Entries in these fields and associated fields FIELD93 and FIELD2K represent validated land cover entries for both years based on review. In the iterative process of review for a processing areas, these fields can be populated at any time. There values will carry through the final processing steps. 2002 Step 6 - Final setup of attribute table and capture of ancillary data or additional data sources. A macro prepares a final set of attributes for the processing area. In addition, it captures zonal statistics for any additional data sources for both 1993 and 2000. This includes: 1. CDF / USFS land cover values for the 1993 time period. 2. CDF/USFS land cover values for the 2000 time period. 3. Riparian mapping for 1998. 4. NOAA mapping for 1993. 5. Change data from CDF/USFS data for the overall time period. 6. Review of original 1993 data from blocks. 7. Field verified data from ESRP. 8. Capture of rice mapping by Ducks Unlimited for 1998. 2003 Step 7 - Final coding for land cover for 1993 and 2000. A final macro compares values in the set of populated attribute fields. Codes are assigned to attributes FIN93 and FIN2000. In addition, attributes SOURCE93 and SOURCE2K are populated based on the source used to populate the land cover fields. Summary fields SUM2000 and SUM1993 are populated based on related table HAB2000LEG. This macro can be iteratively run after any review to update coding. 2003 Metadata imported. C:\Temp\xml2.tmp Metadata imported. C:\DOCUME~1\dhansen\LOCALS~1\Temp\xml5.tmp Metadata imported. C:\DOCUME~1\dhansen\LOCALS~1\Temp\xml12.tmp Dataset copied. P:\cvhm\Work\Final\geoDB83\HAB2000v3.mdb Dataset copied. P:\cvhm\Geolib\Habitat2000_20040127\Habitat\HAB2000-1993.mdb Metadata imported. C:\DOCUME~1\bsimpson\LOCALS~1\Temp\xml14.tmp 20090924 14422800 NA Vector G-polygon 1179188 Label point 32016 GT-polygon composed of chains 32016 Point 4 Label point 259 Label point 415 Label point 982 Label point 982 Label point 6 Label point 982 Label point 1608 Label point 982 Label point 0 Composite object 46 Composite object 2 Composite object 5 Composite object 4 Composite object 7 Composite object 4 Composite object 2 Composite object 1 Composite object 1 Composite object 2 Composite object 1 Composite object 3 Composite object 1 Composite object 1 Composite object 3 Composite object 23 Composite object 21 Composite object 22 Composite object 3 Composite object 2 Composite object 1 Composite object 2 Composite object 2 Composite object 6 Composite object 2 Composite object 7 Composite object 1 Composite object 26 Composite object 14 Composite object 2 Composite object 1 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000520 0.000520 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 0.000010 Explicit elevation coordinate included with horizontal coordinates Landcover2000 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. AREA Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. PERIMETER Perimeter of feature in internal units. ESRI Positive real numbers that are automatically generated. HAB2000_01# Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. HAB2000_01-ID User-defined feature number. ESRI VALUE Value captured from GRID for spectral polygon number USBR CHGSUM Sum of 30 meters cells for spectral polygon representing spectral change from CVHM and CDF/USFS data USBR TPCTCHG Total percent change for the polygon as calculated by the number of cells identified in CHGSUM and total area of polygon USBR DU98 Majority value captured from Ducks Unlimited Rice mapping for 1998 USBR SECFIN2K Secondary code for 2000 CVHM primarily used to recognize urban in other land cover categories USBR FIN93 Final assignment of land cover codes for 1993 USBR FIN2000 Final assignment of land cover codes for 2000 USBR SOURCE93 Code identifying the source for FIN93 USBR 0 No source - Land cover value should be 98 or 99 USBR 1 Field work by USBR between 2001 and 2003 USBR 2 Detailed riparian mapping by California State University, Chico or Jones and Stokes Assocaites USBR 3 Land cover / Land use Mapping by the Endangered Species Recovery Program, Fresno USBR 4 Initial review of change areas by USBR in 2002 where HAB3KIMG has been coded USBR 5 CDF / USFS Change Data for about the 2000 time period USBR 6 CDF / USFS Change data for about 1993 USBR 7 Review in 2001 of original 1993 habitat mapping by blocks USBR 8 NOAA Coastal Monitoring data for 1993 USBR 9 Initial review of 2000 land cover data where HAB2KIMG is coded USBR 10 Values captured from the 1993 CVHM habitat base map from field HAB93X usbr 11 Ducks Unlimited 1993 data for wetland and riparian habitat types USBR 14 Codes captured from original block review of 1993 data and modified to capture more detailed land cover types USBR 16 NOAA 1993 land cover / land use for coastal areas. 18 Capture of CDF / USFS data for 1994 where other data was not available USBR SOURCE2K Code identifying the source for FIN2K USBR SUM1993 General code for 1993 land cover USBR SUM2000 General code for 2000 land cover USBR CHG93T2K Identifies land cover change between 1993 and 2000 USBR CVH1993 Revised 4 digit code for land cover in 1993 USBR CVH2000 Revised 4 digit code for 2000 land cover USBR Detailed descriptions of the attributes in this and related tables are contained in a separate document. Related documents in HTML or Word formats are: 1. hab2000_attributes.htm - Identifies and describes the attributes of the coverage polygon attribute table and related tables 2. hab2000_legend.htm - Detailed description of the land cover legend used for 1993 and 2000. 3. hab2000_sources.htm - Description of the separate data sources used for this product. 4. hab2000_cwalk.htm - Description of the legends from the separate sources and the cross walk to the 1993 and 2000 legend used in this product. See Logical Consistency Report for further information. U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center Charles B. Johnson Regional GIS Program Administrator - Chuck Johnson 916-978-5266 916-978-5290 cbjohnson@mp.usbr.gov 8:00 AM - 5:00 PM Call or email for method of data transfer Downloadable Data The U.S. Bureau of Reclamation assumes no liability in the application and use of this data. This data was developed for general planning purposes, it is not intended to be used as a land survey or representation of land for conveyance or tax purposes. It was developed from the source documents following standard procedures of reviewing the digital version against the information contained in the source documents. Use of this data at scales which are more detailed than the source scale is not recommended. This data has not been verified in the field by U.S. Bureau of Reclamation personnel. Should problems be found in this database please notify the contact provided. NOT FOR DISTRIBUTION WITHOUT NOTICE TO USBR ARCE ArcInfo export format no compression applied 19.516 \\PELTZ\c\gis\hydrography\wdfed24v10 Local area network None. Call or email Distributor 1-2 weeks Call or email Distributor None. 20040204 20040115 Lorri Peltz-Lewis U.S. Bureau of Reclamation, Mid-Pacific Region Geospatial Data Administrator mailing address

2800 Cottage Way MP400

Sacramento CA 95825 USA 916-978-5271 926-978-5290 lpeltzlewis@mp.usbr.gov 8:00 AM - 5:00 PM Call or email FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None If used, please indicate that the data source was the U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center. ESRI Metadata Profile ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile