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  1. Title: Bailey's Ecoregions and Subregions of the United States, 2004

    Contributors:

    Summary: This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.S. Virgin Islands. Four levels of detail are included to show a hierarchy of ecosystems. The largest ecosystems are domains, which are groups of related climates and which are differentiated based on precipitation and temperature. Divisions represent the climates within domains and are differentiated based on precipitation levels and patterns as well as temperature. Divisions are subdivided into provinces, which are differentiated based on vegetation or other natural land covers. The finest level of detail is described by subregions, called sections, which are subdivisions of provinces based on terrain features. Also identified are mountainous areas that exhibit different ecological zones based on elevation. This layer is part of the 1997-2014 edition of the National Atlas of the United States. These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:7,500,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data. U. S. Forest Service. (2004). Bailey's Ecoregions and Subregions of the United States, 2004. National Atlas of the United States. Available at: http://purl.stanford.edu/tj200ct4975. None. Acknowledgment of the USDA Forest Service and (or) the National Atlas of the United States of America would be appreciated in products derived from these data. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  2. Title: Forest Cover Types, United States, 2002

    Contributors:

    Summary: This raster layer portrays general forest cover types for the United States in GeoTIFF format. Data were derived from Advanced Very High Resolution Radiometer (AVHRR) composite images recorded during the 1991 growing season, with the exception of Puerto Rico, for which Landsat Thematic Mapper (TM) data were used. A total of 25 classes of forest cover types were interpreted from the AVHRR and TM imagery, aided by field observations and refined with ancillary data from digital elevation models. The data available through the National Atlas of the United States are in GeoTIFF format. This is a revised version of the May 2002 map layer, with a corrected shoreline for Greenland. This layer is part of the 1997-2014 edition of the National Atlas of the United States. The forest cover types map layer was developed to portray broad distribution patterns of forest cover in the United States. The data should be displayed at scales appropriate for 1:7,500,000-scale data. U.S. Geological Survey and U.S. Forest Service. (2002). Forest Cover Types, United States, 2002. National Atlas of the United States. Available at: http://purl.stanford.edu/ng927vq0549. None. Acknowledgment of the National Atlas of the United States, the USDA Forest Service, and (or) the U.S. Geological Survey would be appreciated in products derived from these data. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  3. Title: Geologic map of the Pacifico Mountain and Palmdale (south half) quadrangles, Los Angeles County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights; depths shown by soundings. "Prepared in cooperation with the U.S. Forest Service, Angeles National Forest; California Dept. of Conservation, Division of Mines and Geology; and the U.S. Geological Survey." "Theodore Off Honorary Map." "First printing, April 2001". Includes quadrangle location map, and index to sources of geology and topography. Includes bibliographical references.

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  4. Title: Lakes of California, 2001

    Contributors:

    Summary: This polygon shapefile consists of over twenty-six thousand California lakes with the primary focus on those water bodies located in the High Sierras and California Cascades. The polygons represent lake shorelines with attributes including lake names and unique IDs. This layer is part of a collection of data created by the California Department of Fish and Game. The intended use of this data set is to assist with Fisheries Programs Management. U.S. Forest Service and California Department of Fish and Game. Marine Resources Region. (2001). Lakes of California, 2001. Department of Fish and Game. Available at: http://purl.stanford.edu/jd832sh5218. Converted to California Teale Albers NAD83 by the California Department of Fish and Game -- BEGIN ORIGINAL METADATA - THIS INFORMATION MAY NOT BE CURRENT -- CALIFORNIA DEPARTMENT OF FISH AND GAME GIS METADATA Lakes of California DATASET NAME: fpb_lakes METADATA FILE: fpb_lakes.txt METADATA DATE: April 5, 2001 DATASET DESCRIPTION: The fpb_lakes shapefile data set is an ArcView polygon feature type consisting of, over twenty-six thousand California water bodies, with primary focus on those water bodies located in the High Sierras and California Cascades. The polygons represent lake shorelines, with attributes including lake names and unique IDs. The intended use of this data set is to assist with fisheries programs management. ----- VITAL STATISTICS: Standard Teale Parameters Datum: NAD 27 Projection: Albers Units: Meters 1st Std. Parallel: 34 00 00 2nd Std. Parallel: 40 30 00 Longitude of Origin: -120 00 00 Latitude of Origin: 00 00 00 Sources: USGS 7.5' DRG quads, Lakes, Sn_lakes and Lakes_24k ArcView shapefile datasets Source Media: DRG Source Projection: Albers; databases: geographic coordinates Source Scales: 1:24,000 and 1:100,000 Capture Methods: Merge of data sets Lakes, Sn_lakes and Lakes_24k Conversion Software: ArcView ver. 3.2a Data Structure: Vector ArcView Feature Type: Polygon ArcView Precision: Single Polygons: 26,526 Data Set Size: 18.2 megabytes, as ArcView shapefile dataset Data Set Date: April 5, 2001 Data Set Last Modified: December 10,2001 ----- DATA DICTIONARY Structure of Table fpb_lakes.dbf ITEM NAME WIDTH TYPE N.DEC DESCRIPTION AREA 18 N 5 Polygon area in square meters PERIMETER 18 N 5 Polygon perimeter in meters LAKES_ID 10 N - Unique identifiers (ID) WATER 01 S - Water status in lake NAME 47 S - Lake name WRCBLAKES 04 N - Foreign key to lakes.dat GNIS_ID 20 S - GNIS name code D_source 16 S - Data source ----- DETAILED ITEM DESCRIPTIONS: Item WATER Code Meaning Y = lake with standing water I = island within lake N = dry lake __ Item NAME Lake names have Geographic Names Information System (GNIS) as their source. __ Item LAKES_ID Manually and sequentially assigned unique IDs starting with number two. __ Item WRCBLAKES Foreign key (relate item) from lakes.pat to INFO database lakes.dat, containing information on water quality and fisheries management. __ Item GNIS_ID USGS Geographic Names Information System (GNIS) code uniquely identifying the instance of the given lake name. This code is particularly useful for common lake names such as 'Bear Lake', 'Cold Lake', etc... __ Item D_SOURCE Code Meaning DFG_FPB = Originated from Lakes_24k dataset. Produced by Department of Fish and Game, Fisheries Programs Branch. DFG_ITB = Originated from Lakes dataset. Produced by Department of Fish and Game, Information Technology Branch. USDA_USFS = Originated from Sn_lakes dataset. Produced by the United States Department of Agriculture, United States Forest Service. ----- COVERAGE PROCESSING METHODOLOGY: The fpb_lakes shapefile data set was produced, using ArcView's GeoProcessing Wizard, by merging the data sets Lakes, Sn_lakes and Lakes_24k together. Lakes was the specified data set upon which Sn_lakes and Lakes_24k were merged. EDITS TO LAKES The edits made to Lakes.shp were removal of duplicate polygons. Polygons that were duplicates of polygons in Sn_lake.shp were removed. Deletion based upon the following criteria: Sn_lakes.shp was digitized at 1:24,000 and Lakes.shp was digitized at 1:100,000. The edits made to Lakes.dbf were removal of the fields Lakes_ and Lakes_id. Both fields were generated, populated and used by the original ARC/INFO lakes coverage. Lakes_id was re-created and re-populated in ArcView to represent unique IDs for the lakes. __ EDITS TO SN_LAKES The sn_lakes data set was obtained as an ARCINFO e00 file from the USDA Forest Service through the California Department of Forestry then converted to an ArcView shapefile. Edits made to sn_lakes.shp was the deletion of land polygons. Criteria for deletion was based upon the Sn_lakes.dbf. Records with 0 in the Water Field were removed. 0s indicated land. The edits made to sn_lakes.dbf were the deletion of Lakes_id, Lcode and Cff_code fields. Lakes_id was generated, populated and used by the original ARC/INFO sn_lakes coverage. Lakes_id was re-created and re-populated in ArcView to represent unique ids for the lakes. Lcode identified water body types, Lakes; Island; Reservoir; and River. This information was reclassified in the Water field. Cff_code was generated from the integer codes of Geometronics CFF files. The 'Name' field was created and populated using USGS 7.5' topographic quads. ----- DESCRIPTION AND LOCATION OF RELATED ORIGINAL DATA SETS: ABSTRACT fpb_lakes was produced by merging the data sets Lakes, Sn_Lakes and Lakes_24k together. The following is the original metadata for the three data sets. METADATA FOR LAKES \\applib1\gisdata\metadata\dfg\Lakes.txt __ METADATA FOR SN_LAKES \\fpb01gis\ddrive\data\meta\Sn_lakes.txt __ METADATA FOR LAKES_24K \\fpb01gis\ddrive\data\meta\Lakes_24k.txt ----- DATA CONTACT(S) Contact Name: Rod Gonzalez (CA Department of Fish and Game) Contact Voice Telephone: (916) 653-5232 Contact Electronic Mail Address: rgonzalez@dfg.ca.gov __ Metadata Security Information: Metadata Security Classification System: None Metadata Security Classification Description: None Last Modified: December 10, 2001 -- END ORIGINAL METADATA -- The intended use of this data set is to assist with Fisheries Programs Management. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  5. Title: Geologic map of the Sleepy Valley and Ritter Ridge quadrangles, Los Angeles County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "Prepared in cooperation with the California Dept. of Conservation, Division of Mines and Geology; and the U.S. Geological Survey." "Perry L. Ehlig Honorary Map." "First printing, May 1997". Includes 2 col. cross-sections, and location map. On verso: "Geologic cross-sections for the Sleepy Valley and Ritter Ridge quadrangles, Los Angeles County, California, by Thomas W. Dibblee, Jr.; prepared and edited by Wendy L. Bartlett; prepared in cooperation with the California Dept. of Conservation, Division of Mines and Geology; U.S. Forest Service, Angeles National Forest; and the U.S. Geological Survey." Complete legend, 4 cross sections, index to sources of geology, acknowledgements and map dedication on verso. Bibliography on verso.

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  6. Title: Geologic map of the Green Valley quadrangle, Los Angeles County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "Prepared in cooperation with the California Department of Conservation, Division of Mines and Geology; U.S. Forest Service, Angeles National Forest; and U.S. Geological Survey." "William R. Muehlberger Honorary Map." "First printing, May 1997". Includes acknowledgments, index to sources of geology, 2 col. cross-sections, and location map. Includes bibliography.

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  7. Title: Geologic map of the Whitaker Peak quadrangle, Los Angeles and Ventura Counties, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "Prepared in cooperation with the California Department of Conservation, Division of Mines and Geology; U.S. Forest Service, Angeles and Los Padres National Forest; and the U.S. Geological Survey." "John C. Crowell Honorary Map." "First printing, May 1997". Includes acknowledgments, index to sources of geology, 3 col. cross-sections, and location map. Includes bibliography.

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  8. Title: Geologic map of the Topatopa Mountains quadrangle, Ventura County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "First printing, December 1996." "T.W. Dibblee, Jr., field work, 1946,1980". "Prepared in cooperation with the U.S. Forest Service, Los Padres National Forest; California Department of Conservation, Division of Mines and Geology; and U.S. Geological Survey." Includes 2 col. cross sections, acknowledgements, index to sources of geology, age correlation chart and location map. Includes bibliography.

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  9. Title: Geologic map of the Cobblestone Mountain quadrangle, Ventura and Los Angeles Counties, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "Prepared in cooperation with the U.S. Forest Service, Los Padres National Forest; Department of Conservation, Division of Mines and Geology; and U.S. Geological Survey." "First printing, December 1996". Includes acknowledgments, index to sources of geology, 2 col. cross-sections, age correlation chart, and location map. Includes bibliography.

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  10. Title: Geologic map of the Devils Heart Peak quadrangle, Ventura County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr.; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. "Prepared in cooperation with the U.S. Forest Service, Los Padres National Forest; California Department of Conservation, Division of Mines and Geology; and U.S. Geological Survey". "First printing, December 1996". Includes acknowledgments, index to sources of geology, 2 col. cross-sections, location map and age correlation chart. Includes bibliography.

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  11. Title: Geologic map of the Los Olivos quadrangle, Santa Barbara County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr. ; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. Includes acknowledgments, age correlation chart, quadrangle location map, "Index to sources of geology" map, and cross-section diagram. "Prepared in cooperation with U.S. Forest Service, Los Padres National Forest; California Department of Conservation, Division of Mines and Geology; and U.S. Geological Survey." Includes "Pertinent references."

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  12. Title: Geologic map of the Figueroa Mountain quadrangle, Santa Barbara County, California

    Contributors:

    Summary: by Thomas W. Dibblee, Jr. ; edited by Helmut E. Ehrenspeck. Relief shown by contours and spot heights. Includes acknowledgments, quadrangle location map, "Index to sources of geology" map, and cross-section diagram. "Prepared in cooperation with U.S. Forest Service, Los Padres National Forest; California Department of Conservation, Division of Mines and Geology; and U.S. Geological Survey." Includes "Pertinent references."

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  13. Title: Chippewa National Forest, Minnesota : 1941

    Contributors:

    Summary: Cartographic Details: Scale [1:130,000] ; Polyconic projection (W 94°0'--W 93°18'/N 48°00'--N 46°0'). "Fourth and fifth principal meridians." 99 x 95 centimeters 1:130,000 General Minnesota Maps

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  14. Title: Superior National Forest, Minnesota, 4th principal meridian, 1934

    Contributors:

    Summary: Cartographic Details: Scale approximately 1:250,000. "F.A. Silcox, forester." 50 x 81 centimeters 1:250,000 General Minnesota Maps

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  15. Title: Tongass National Forest, Alaska : Copper River meridian

    Contributors:

    Summary: Relief shown by hachures and spot heights.; Greenwich prime meridian.; "Printed by the U.S. Geological Survey."; Inset: northwest continuation of map at same scale. 90 x 67 centimeters Scale approximately 1:760,000 General Map Collection

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  16. Title: Superior National Forest, Minnesota, fourth principal meridian, 1928

    Contributors:

    Summary: Relief shown by hachures.; Shows locations of: [forestry] supervisor's headquarters, ranger statsion, permanent lookout stations, and triangulation stations. 49 x 80 centimeters Scale approximately 1:254,000 General Map Collection

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  17. Title: Superior National Forest, Minnesota, 1928.

    Contributors:

    Summary: Cartographic Details: Scale approximately 1:253,440. Location map. Text and ill. on verso. "4th principal meridian." 59 x 78 centimeters 1:253,440 General Minnesota Maps

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  18. Title: National forests, state forests, national parks, national monuments and Indian reservations

    Contributors:

    Summary: District boundaries and numbers shown in red.; Includes text, insets of Alaska and Puerto Rico, and lists of forest supervisors headquarters, experiment stations, and "Headquarters of state forester or similar officer." 43 x 71 centimeters Scale 1:7,000,000 General Map Collection

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  19. Title: Cleveland national forest, California : San Bernardino meridian, 1926

    Contributors:

    Summary: Polyconic projection. 28 x 26 in Scale approximately 1:253,440 General Map Collection

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  20. Title: Superior National Forest, Minnesota 4th principal meridian, 1924

    Contributors:

    Summary: Cartographic Details: Scale ca. 1:253,000 (W 92°35'--W 90°/N 48°25'--N 47°35'). Relief shown by hachures. 42 x 81 centimeters 1:253,000 General Minnesota Maps

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