Founded in 1984, it is a town located in Mono County, in the State of California and surrounded by impressive landscapes.Mammoth Lakes is the perfect central base to explore everything that makes them extraordinary. the mountains of California. The Mammoth Lakes watershed is full of places to take a nice hike, catch a big trout you can brag about, or take a leisurely bike ride on paved trails. Find a natural hot spring pool all to yourself and relax in it, or have a great time at one of Mammoth Lakes' famous festivals or events. After a day of adventure, recharge your batteries with great food and spectacular mountain views at one of its many restaurants or at a nationally famous craft brewery.Mammoth Lakes is the headquarters from the world-famous Mammoth Mountain Ski Area, one of the official training mountains of the United States Olympic Team. With its large size, Mammoth Mountain accommodates 150 runs, ranging in terrain levels from beginner to expert.