
The rocks of Morrison Peak are made up of limestones and clay muds from a continental shelf ~400-600Ma. The rocks were crushed and uplifted by the successive…

A student gets the perfect shot of Convict Lake. The lake exists thanks to the major Sherwin Glaciation that occurred between an million and 850K years ago.…

Poorly-stiched pano of the Long Valley Caldera. Erupted 767,000 years ago with 50+ episodes of volcanism. Made a 10mi x 20mi caldera and erupted over 150 cubic…

Big Pumice Cut on Sherwin Grade, HWY 395. The bushy area behind the portapotties on the roadcut is actually Sherwin Glaciation till! It is topped by grus, and…