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 offer 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. Our server maintenance typically occurs on Wednesday evenings from 6 to 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 California Geoportal. Index GIS layers indicating acquisition dates for NAIP images are also available here by year. CDFW's NAIP services use DOQQ source images.

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

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. Just add the layer files to ArcMap.

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

OpenGIS WMS connections are available for many of the services. For example, this URL connects to the WMS for the NAIP 2012 natural color service: https://map.dfg.ca.gov/arcgis/services/Base_Remote_Sensing/NAIP_2012/ImageServer/WMSServer?
Use the REST Services Directory to determine which services have WMS capabilities (browse to a service description and look for a WMS link near the top of the page).

Current offered services

  • NAIP 2012 aerial imagery, 1 meter resolution, in 4 variations (natural color, 4-band, CIR/false color, NDVI)
    • NAIP_2012: Natural color imagery in a compressed format.
    • NAIP_2012_4Band: 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: Color infrared (CIR) / false color imagery in a compressed format. CIR imagery is useful for various purposes, including vegetation mapping.
    • NAIP_2012_NDVI: Normalized Difference Vegetation Index (NDVI) rendering 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 aerial imagery, 1 meter resolution, in 4 variations (natural color, 4-band, CIR/false color, NDVI) See above
  • NAIP 2009 aerial imagery, 1 meter resolution, in 4 variations (natural color, 4-band, CIR/false color, NDVI) See above
  • NAIP 2005 aerial imagery, 1 meter resolution (natural color)
    • NAIP_2005: Natural color imagery in a compressed format.
  • California 2005 CIR aerial imagery, 1 meter resolution, in 2 variations (CIR/false color, NDVI)
    • California_CIR_2005: Color infrared (CIR) imagery acquired during NAIP 2005 flights for California but not released as a NAIP product. Coverage was not available in all areas.
    • California_CIR_2005_NDVI: 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.
  • USGS topo maps seamlessly displayed in 4 different renderings (regular, grayscale, hillshaded, transparent background)
    • Topo_Regular: Regular colors.
    • Topo_Grayscale: Grayscale colors.
    • Topo_Hillshade: Integrated with hillshade/relief data for enhanced topographic display.
    • Topo_Transparent: 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.