The Laws Field Guide to the Sierra Nevada
Jepson Manual to Higher Plants of California
California Naturalist Handbook
Flora of Yosemite National Park
iNaturalist Yosemite Field Station Project
Merlin and eBird - bird identification
CalTopo - navigation
Updated April 3, 2023
Yosemite Field Station is open. Sequoia Field Station remains closed due to the impacts of winter weather. Please see our COVID-19 Information page for more information about our COVID-19 policies. You can check real time air quality at fire.airnow.gov. For information about road closures and chain control check the Yosemite National Park website.