Quake and Shake 10K/Half Marathon - Mammoth Lakes, CA - Sierra Nevada Races. The 10K and 1/2 marathon races are on dirt roads that loop through the scenic Inyo Craters area of the Inyo National Forest. There is little elevation gain or loss, but it is at 8000 feet. There are three aid stations with water and gatorade. - Zip Codes: 93546
