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North of the California border, scientists just found 21 trillion gallons of water hiding in the cracks of volcanic rock.

Millions of Americans are under weather warnings or advisories today as the U.S. braces for a new winter storm this week. A ...

A massive aquifer is stored just beneath volcanic rocks at the crest of the central Oregon Cascades – possibly the largest ...

Sunny with a high of 58 °F (14.4 °C). Winds N at 22 to 29 mph (35.4 to 46.7 kph). Night - Clear. Winds N at 19 to 23 mph (30.6 to 37 kph). The overnight low will be 49 °F (9.4 °C). Windy today ...

The discovery could have implications for water users in the region as drought and extreme weather limit snowpacks, rainfall ...

WE ALSO HAVE CREWS IN SOUTH LAKE TAHOE. WE’VE ALSO BEEN MONITORING ... WARNING IN EFFECT FOR NORTHERN TEHAMA COUNTY, BUT ON OUR MAPS HERE, THAT WARNING WENT AWAY, INDICATING THAT IT MAY HAVE ...

Lake Shasta, the state's largest reservoir ... Where are mandatory evacuation orders for California wildfires? See LA maps.

The rugged beauty of the waterfalls in Northern California is something else! Some of the best and most popular waterfalls in ...

The subterranean aquifer lurking in the mountains contains three times as much water as Lake Mead at full capacity.

The map uses six classifications to describe the ... with the state’s largest, Shasta Lake and Lake Oroville, at 78% and 70%, respectively. Still, as SFGATE previously reported, recovery ...