The loop begins about 1/4 mile before the parking lot and heads west. There are signs to mark the trail. There is one creek crossing along this relatively flat route. (If you don't want to get your feet wet, carry your bike at the upstream crossing.) The Jeffrey pine forest in this area is one of the largest in the world. To see the Inyo Craters, follow a short foot trail from the parking area. source: fs.usda.gov
Following Hwy. 203 toward Mammoth Mountain's Main Lodge, turn right on Mammoth Scenic Loop. Follow this paved, two-lane road 2.7 miles to the Inyo Craters turnoff. Turn left and follow the signs tot he parking lot at the Inyo Craters trail head. Park here.
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