The statewide Sierra Nevada snowpack, which provides nearly one-third of California’s water supply, began the year in good ...

In 1976, Congress designated the 25-million-acre region of desert stretching from the Mexican border north to Death Valley and the eastern Sierra Nevada Mountains as the California Desert Conservation ...

Conclusive evidence of foundering, however, has been hard to come by. Peering deep under California's Sierra Nevada, Vera Schulte-Pelkum and Deborah Kilb discovered new evidence of lithospheric ...

Nevada is known for its desert bighorn sheep — the official state animal — and the desert tortoise, its official reptile. But ...

part of the Northern Sierra Nevada mountains, western Plumas County and Lassen Volcanic National Park. Winter storm warnings pepper parts of Northern California Monday, much of which remain in ...