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California Gap Analysis Project: Statewide Datasets

This page lists the statewide spatial datasets available online from the California Gap Analysis Project. Some of these data layers were compiled and used in the actual analysis, but others serve as base map information such as roads and geopolitical boundaries.

GIF Click the GIF icons to view browse images of the data sets.
META Click the META icons to view or download the data documentation.
EXPORT Click the EXPORT icons with the RIGHT mouse button and select "Save Link As" to download ARC/INFO export files.
Name Description Zip Size Unzip Size Graphic Metadata Download
LANDCOV 
 Land cover of California, produced from Thematic Mapper imagery.
24.5 MB
109.3 MB
META
EXPORT
VERT
 Predicted distributions for 455 terrestrial vertebrate species in California. Text file can be related to Landcov by the polygon id.  (Updated 2/24/00 to include species B990 and B991 that were accidentally missing from the original version).
2.1 MB
27.3 MB
META
EXPORT
MA
Land stewardship and management status of California. (1:100,000 scale version) (This layer has not been maintained. For current information, the California Resources Agency maintains a data layer entitled PublicConservationAndTrustLands on the California Spatial Information Library at http://gis.ca.gov/meta.epl?oid=31122).
10MB
17.7 MB
META
EXPORT
MA2M
 Land stewardship and management status of California. (1:2 million scale version)
2.6 MB
9.4 MB
META
EXPORT
USGS24K
 Analytical results by USGS 1:24,000 quads of California.
1.1 MB
4.2 MB
META
EXPORT
JEPSON
 Jepson ecological region boundaries of California.
1.0 MB
3.5 MB
META
EXPORT
USGS100K
 USGS 1:100,000 quadrangle boundaries of California.
0.1 MB
0.3 MB
META
EXPORT
COUNTY
 County boundaries of California.
1.0 MB
4.2 MB
META
EXPORT
ROADS
 Major roads of California.
1.4 MB
4.4 MB
META
EXPORT
TM100 
(Unix version)
 Landsat Thematic Mapper mosaic image of California (100 meter resolution, bands 3,4,5).
130 MB
289 MB
META
EXPORT
TM100 (Windows version)
 Landsat Thematic Mapper mosaic image of California (100 meter resolution, bands 3,4,5).
110 MB
289 MB
META
EXPORT
SHADE
 Shaded relief image of California, 100 meter resolution.  (Wrap around problem fixed 8/15/02)
27.0 MB
96.0 MB
META
EXPORT

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