California Department of Fish and Wildlife

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Department of Fish & Wildlife
Biogeographic Data Branch
1807 13th Street, Suite 202
Sacramento, CA 95811
(916) 322-2493 • Email BDB

Map Services

A Map Service serves georeferenced map images over the Internet that are generated by a map server using data from a GIS database. A variety of software products, mostly desktop GIS software, have the capability to request and display these maps.

We are excited to be offering these map services, and we expect they will have very good reliability. However, we can't guarantee that they will be running at all times. Additionally, our server maintenance typically occurs on Wednesday evenings, from 6-9pm, so our map services may be down during that time period.

Source datasets for many of the services are available for download from the Cal-Atlas Geospatial Clearinghouse.

Index GIS layers for NAIP images are also available here by year. CDFW's NAIP services typically use DOQQ source images.

If you have any questions or feedback on these map services, please contact our .


Access our services via ArcGIS Layer files (new files 4/2014): Download a single zip file containing ArcGIS Layer files for each of our services.

Access our services via ArcGIS "GIS Server" connection (new URL 4/2014): Server URL = https://map.dfg.ca.gov/arcgis/services

Access our services via the REST Services Directory (new URL 4/2014): https://map.dfg.ca.gov/arcgis/rest/services

Current offered services

  • NAIP 2012 summer aerial imagery in 4 variations (natural color, 4-band, CIR/false color, NDVI)
    • NAIP_2012: This service delivers 2012 natural color imagery in a compressed format.
    • NAIP_2012_4Band: This service delivers all 4 bands of the 2012 imagery (R,G,B,IR) in an uncompressed format for those who want full access to the source data for analyses. This service is slower than the others because of the amount of data being served.
    • NAIP_2012_CIR: This service delivers color infrared (CIR) / false color imagery in a compressed format. CIR imagery is useful for various purposes, including vegetation mapping.
    • NAIP_2012_NDVI: This experimental service delivers a Normalized Difference Vegetation Index (NDVI) rendering of the 2012 imagery for general assessments of vegetation health and biomass. The color-ramp goes from brown (less healthy vegetation) to red to green (healthier vegetation or more "greenness"). More information about the NDVI process used is available on ESRI's ArcGIS Desktop Help page on using the NDVI process.
  • NAIP 2010 summer aerial imagery in 4 variations (natural color, 4-band, CIR/false color, NDVI) See above
  • NAIP 2009 summer aerial imagery in 4 variations (natural color, 4-band, CIR/false color, NDVI) See above
  • NAIP 2005 summer aerial imagery (natural color)
    • NAIP_2005: This service delivers 2005 natural color imagery in a compressed format.
  • California 2005 summer CIR aerial imagery in 2 variations (CIR/false color, NDVI)
    • California_CIR_2005: This service delivers color infrared (CIR) imagery acquired during NAIP flights for California in the summer of 2005. CIR coverage was not available in all areas.
    • California_CIR_2005_NDVI: This experimental service delivers a Normalized Difference Vegetation Index (NDVI) rendering of the CIR 2005 imagery for general assessments of vegetation health and biomass. The color-ramp goes from brown (less healthy vegetation) to red to green (healthier vegetation or more "greenness"). More information about the NDVI process used is available on ESRI's ArcGIS Desktop Help page on using the NDVI process.
  • Topo maps in 4 different renderings (regular, grayscale, hillshaded, transparent background)
    • Topo_Regular: This service provides seamless display of topographic map datasets in regular colors.
    • Topo_Grayscale: This service provides seamless display of topographic map datasets in grayscale colors.
    • Topo_Hillshade: This service provides seamless display of topographic map datasets integrated with hillshade/relief data for enhanced topographic display.
    • Topo_Transparent: This service provides seamless display of topographic map datasets with a transparent background - useful for draping over other data such as aerial photography. The white pixels and other selected background data are rendered transparent while other features such as place names and hydrography display in regular colors. The transparency effect may only work in particular software such as ArcMap.
  • Historic Sacramento Delta Maps
    • Aerial Imagery: Aerial photography from 1937.
    • USGS topos: USGS topo maps published between 1910-1918.