The Mammoth is a 214 mile footrace through the Eastern Sierra, starting and finishing in Mammoth Lakes, California. This breathtaking loop connects small mountain communities while circumnavigating a 760,000 year old caldera. Your route will take you along pristine alpine lakes, abandoned mines, golden fall foliage, and dense pine forests before he
214 mile loop form Mammoth Lakes around a 760,000 year old caldera