The mountain range straddling California and Nevada has had mostly warm storms this winter. Finally, a cold one has piled up ...

The statewide Sierra Nevada snowpack, which provides nearly one-third of California’s water supply, began the year in good shape, at 108% of normal.

Though Granada's storied history should be appreciated as much as possible, the nearby Sierra Nevada Mountains are also worth exploring. The Sierra Nevada Mountains are part of Sierra Nevada ...

But none were quite as formidable as the snowy granite mountain range rising east of Sacramento. Getting through the Sierra Nevada would require fortitude, technology -- and the sacrifice of many ...

Beneath California's Sierra Nevada mountains, the crust is peeling away. This process, called lithospheric foundering, is nothing to worry about. In fact, it may be how the continents first formed.

In this week's science news we've seen Earth's crust peeling away under the Sierra Nevada mountains, mimicking the process ...

with the warning expanding to include the Northern Sierra as of 1 p.m. A Winter Storm Warning is in effect from Monday through Wednesday for the mountains above 5500 feet. Mountain travel will be ...

The atmospheric river storm hitting Northern California is set to bring heavy rain to the San Francisco Bay Area on Tuesday, potentially triggering flooding. In the mountains, the National Weather ...

The mountain yellow-legged frog was once the most abundant amphibian in Southern California's Sierra Nevada and Transverse Ranges. Just decades ago, it was hard to walk around many of California's ...

The mountain yellow-legged frog was once the most abundant amphibian in Southern California's Sierra Nevada and Transverse Ranges. Just decades ago, it was hard to walk around many of California's ...