CHESTER — The final snowpack survey of the year took a bit more effort for the PG&E team at Lassen Volcanic National Park. In the dense, late April snow, PG&E hydrographers drilled through 211 inches ...

Lassen Peak had its most powerful explosion in a series of eruptions that occurred between 1914 and 1917. Take a look at ...

Lassen Peak itself is only the latest manifestation of volcanism in the Cascades just to the east of Redding, California. There has been volcanism in that stretch of the Cascade arc for over 3 million ...

When you gain the rim of the caldera at Lassen Peak, you realize in a flash why you came this far. As you top the rise, hardened lava flows extend in the caldera in front of you, a jumble of crags and ...

Add Yahoo as a preferred source to see more of our stories on Google. For winter dreams of skiing down glistening white slopes and spending time in snow-covered lodges, big snowfall is a must. Ski ...

One hundred years ago, a mere geologic eye blink, tectonic plates did a little twerking, and Lassen Peak roiled and rumbled, bubbled and blew. Boulders the size of Buicks and ash as fine as a single ...