Between California and Nevada, this high-country lake sparkles beneath the Sierra Nevada with campsites, boat launches, and ...

A 2024 satellite photo shows an unusually active bloom of toxic cyanobacteria swirling in the water of Nevada's Pyramid Lake.

Imagine living through one of the most massive volcanic eruptions in history—Toba’s supereruption, about 74,000 years ago, was exactly that. For our ancient relatives, it was like the world turned ...

A geothermal well drilled at the Pumpernickel site came in hotter and more permeable than explorers expected, and both state and company officials say the results could turn the area into one of the ...