Our Region

Sierra Nevada Region, by the numbers:

  • Constitutes about 25 percent of California’s land area, or 25 million acres.
  • Is California’s principal watershed, supplying over 60 percent of the developed water supply.
  • Stores nearly half of California’s total forest carbon, which helps mitigate climate change.
  • Sustains an extensive tourism/recreation industry—over 50 million recreation visit days a year.
  • Supports 212 communities with more than 600,000 residents.
  • Houses 60 percent of California’s total animal species (vertebrates)—572 distinct species. Over one-third are listed as rare, threatened, or endangered by the Department of Fish and Wildlife.
The Sierra Nevada Region provides numerous benefits to California.

Counties, Subregions, and Maps

All or part of 22 counties make up the Sierra Nevada Conservancy (SNC) Region and are organized into six Subregions:



Modoc, Lassen, Shasta

North Central:

Tehama, Butte, Plumas, Sierra


Yuba, Nevada, Placer, El Dorado


Interactive Regional Map

Explore a map of the Sierra Nevada Region, view the SNC’s office locations, and contact information for Area Representatives.

Map Resources

Explore the SNC’s map resources.

Key Issues

Healthy Forests

Sierra Nevada forests provide a wealth of benefits to the state of California. However, extreme levels of tree mortality and an increase in large, damaging wildfires jeopardize these vital benefits and adversely impact California’s aggressive greenhouse gas reduction goals. These forests are gravely unhealthy and need our help to restore them.


The lack of wood and biomass processing infrastructure in the Sierra Nevada is a significant impediment to forest restoration efforts.

Abandoned Mine Lands

California’s Gold Rush spawned population growth, new technology, and wealth in the state. However, legacy abandoned mine lands (AML) continue to impact our water bodies and us.

System Indicators

In order to know whether the SNC is effectively carrying out its programs, and to track the human, resource, and environmental health and well-being of the Sierra Nevada, the SNC developed a set of system indicators in collaboration with subject experts and other organizations.