National Park Service

Sierra Nevada Network (SIEN)

Sierra Nevada Network Parks

Weather station at Devils Postpile NM Devils Postpile National Monument Glacial polish on top of Devils Postpile columnar basalt formation Paintbrush flowers at Devils Postpile NM Black bear in the river at Sequoia & Kings Canyon Bullock's Oriole, Sequoia & Kings Canyon Davis Lake, Kings Canyon National Park Foxtail pine,  Sequoia National Park Moro Rock at Sequoia & Kings Canyon Pika at Sequoia & Kings Canyon Giant sequoia trees at Sequoia & Kings Canyon Giant sequoia trees at Sequoia & Kings Canyon Yellow-legged frog Deer in a meadow at Yosemite NP Yosemite Falls Great gray owl at Yosemite National Park Hydrologist working at Yosemite National Park Scientists studying lichens at Yosemite National Park Half Dome and Merced River, Yosemite National Park Tenaya Lake, Yosemite National Park

The Sierra Nevada Network (SIEN) includes four parks located on the west slope of the Sierra Nevada mountain range in California: Devils Postpile National Monument, Sequoia and Kings Canyon National Parks, and Yosemite National Park. The SIEN parks have a striking elevation gradient, from 1,370 feet (418 meters) in the foothills to 14,494 feet (4,421 meters) at the top of Mount Whitney, the highest peak in the lower 48 states. This elevation gradient and topographic variability result in a high diversity of plants and animals. The Sierra Nevada parks span seven major watersheds, and water resources are a critical component of parks' ecosystems as well as the California water supply. The parks range in size from 1.25 to 1,350 square miles (324 to 350,000 hectares) and over 90 percent of park lands are designated wilderness.

SIEN staff work closely with each park's natural resources program to develop and implement long-term monitoring and provide sound scientific information to park managers. Click on a link to a park monitoring page below, or in the left-hand navigation on this site, to see the natural resources that SIEN monitors at these parks.

Network Parks


Sierra Nevada Network Park Map

SIEN park map Yosemite National Park Devils Postpile National Monument Devils Postpile National Monument Sequoia & Kings Canyon National Parks

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Last Updated: December 30, 2016 Contact Webmaster