"Earthquake Fault": fissure in lava flow from Mammoth Mountain. Sierra Nevada, California, USA.
Along Minaret Road, two miles northwest of downtown Mammoth Lakes, the so-called "Earthquake Fault" is actually a fissure (10 feet wide and 60 feet deep) in a glassy rhyolite lava flow from Mammoth Mountain. The fissure is geologically recent, but older than its 160-year-old red fir and Jeffrey pine trees. The crack lines up with the nearby Inyo-Mono Craters. Inyo National Forest, Sierra Nevada Mountains, California, USA.Add to Cart Add to Lightbox Download