Trail 1 (Main Loop) is a hiking, biking, and horse trail in Clark County, Nevada. It is within Valley of Fire State Park. It is 14.9 miles long and begins at 1,799 feet altitude. Traveling the entire trail is 3.7 miles with a total elevation gain of 135 feet. The fire pit at Red Rock and another picnic site can be seen along the trail. There are also restrooms along the trail.