Yosemite National Park
Yosemite National Park is a recognized dark sky location in California for stargazing and astronomy activities.
Bortle
Yosemite National Park is rated BORTLE CLASS 1.
Type
As a U.S. national park, various camping options may be available, including frontcountry, dispersed (boondocking), and backcountry (backpacking/primitive). A permit may be/is required.
Birding
In addition to being known for its dark skies, Yosemite is also known for its birdwatching, with many different species of birds that habitate there.
UNESCO
Yosemite National Park is also a UNESCO site.
For more info, see their website. See also all dark sky places in CA.