The Mammoth Lakes Trail System connects riders to a vast native-dirt road/trail network to the north, east and southeast of town. From staging areas along the Scenic Loop, Sherwin Creek Road and the north side of Highway 203, riders can explore the world's largest Jeffrey pine forest, from the San Joaquin Ridge to Deadman Creek and Lookout Mountain, and east across the Long Valley Caldera. OHVs are permitted only on roads and motorized trails as published on the Inyo National Forest Motorized Vehicle Use Map (MVUM); roads on the MammothTrails.org maps reflect the 2011 MVUM.