GIS Mapping and Geothermal Maps

​​​​​​​​​GIS Mapping

Data Disclaimer

The well information and data represented on this site varies in accuracy, scale, origin, and completeness and may be changed at any time without notice. While the Department of Conservation's Geologic Energy Management Division (CalGEM) makes every effort to provide accurate information, the department makes no warranties as to the suitability of this product for any particular purpose. Any use of this information is at the user's own risk.

Data Formats

Well data is available in Microsoft Excel files and shapefile formats. Microsoft Excel can be saved to your computer and brought into other database software applications. Shapefiles are specific to ESRI's ArcGIS software; however, many other mapping programs have the ability to import shapefiles.

Metadata is included in the downloaded zip files.

NOTE: For information not found in these tables, please contact the appropriate ​district office directly.

​GIS Data (shapefile) Well Data - (Excel)
Geothermal Wells

Geothermal Wells


Interactive Maps

Well Finder: An Interactive map viewer that includes location of wells, fields, seeps, and notices and permits in California.​

Geothermal Maps

Geothermal Data Viewer Map

**To read and print maps from this site, Adobe Reader is needed. Installation is free. 

General Information​

Map# / Download Title / Description File Size (KB)
S-11

 
Geothermal Map of California
Map showing geothermal fields, known geothermal resource areas, high-temperature wells, geothermal springs, and power plants. (2002).
4,860

Get Back Issues
Monthly Map Revision Bulletin
Monthly compilation of changes to CalGEM maps. Download the latest issue or back issues (last updated July 2007).
~400
S-1
 
Oil, Gas, and Geothermal Fields in California
Map showing California oil, gas, and geothermal fields; sedimentary basins with oil and gas production; and California counties with commercial oil, gas, and geothermal production (2001).
2,306
S-2
 
Energy Map of California
Map showing sedimentary basins; oil, gas, and geothermal fields; oil, gas and product pipelines; tanker ports; refineries; and geothermal, nuclear, wind, cogeneration, hydroelectric, and fossil fuel electrical-generation plants. (2000).
 

 

Digital maps

Map# / Download Title / Description File Size (KB)
Casa Diablo (Mono County) 2014
With Basemap
Without Basemap

3,914
6,005
Long Valley (Mono County) 2014
With Basemap
Without Basemap
 
7,611
6,576
Amedee, Wendel, Litchfield, Susanville (Lassen County) 2014 
With Basemap
Without Basemap

 
7,486
6,255
 
Lake City (Modoc County) 2014
With Basemap
Without Basemap
 
5,725
6,689

G2-1
G2-1
Salton Sea  (Imperial County) 2014
With Basemap
Without Basemap
 
3,660
2,407

G2-2
G2-2
Brawley (Imperial County) 2014
With Basemap
Without Basemap
 
3,851
1,985

G2-3
G2-3
Heber (Imperial County) 2014 
With Basemap
Without Basemap
 
4,190
2,144

G2-4
G2-4
Hot Mineral Spa (Imperial/Riverside Counties) 2014
With Basemap
Without Basemap
 
5,660
3,212

G2-5
G2-5 
East Mesa (Imperial County) 2014
With Basemap
Without Basemap
 
2,700
1,770

G2-6
G2-6
Desert Hot Springs (Riverside County) 2014
With Basemap
Without Basemap
 
4,142
3,964

G2-7
G2-7
Coso Geothermal Field (Inyo County) 2014
With Basemap
Without Basemap
 
6,811
6,565
The Geysers (Lake, Sonoma, and Mendocino Counties) 2014
With Basemap
Without Basemap

 
6,728
7,187
 
Calistoga (Napa County) 2014
With Basemap
Without Basemap
 
4,810
3,378
 
 
The Geysers Area (Sonoma, Lake, Mendocino, and Napa Counties) 2014
With Basemap
Without Basemap

 
5,613
4,196
NCPA Spreadsheet List of NCPA wells with their alternate well names.