East of Barstow and north of Baker, the Dumont Dunes Off-Highway Vehicle Area is a large open area for dirt bike riding. It is bordered by steep volcanic hills and the slow running Amargosa River, the region is easily recognized from a distance by its distinctive sand dunes. The elevation here varies from 700 feet, at the river, to 1,200 feet at the top of Competition Hill, the tallest of the dunes. The vegetation here consists of creosote scrub, some annual grasses, and wildflowers in the spring. The low elevation in the area makes for warm to extremely hot conditions in spring and summer. Early spring wildflower displays in this vicinity can be quite impressive.
Permits are required for all vehicles that are driven into the Dumont Dunes area (permits are not required for vehicles towed or brought in on a trailer). Note: All fees collected are used to support activities and projects at Dumont Dunes.
The riding area is south of the Amargosa River and east of State Highway 127, about 31 miles north of Baker, California. There are two ways of getting to the dunes. The Little Dunes staging and camping area is directly off Highway 127, conveniently located for immediate staging. One mile north of here, just off Highway 127, is Dumont Road, a dirt road which follows and crosses the river, leading to the main field of large dunes.
All vehicles must have a muffler or spark arrester and have either a street-legal license or be registered as an off-highway vehicle.
All OHVs must have a mast and red or orange flag for visibility in the dunes.
Overall, Dumont Dunes ORV Area is the 85th most popular dirt bike trail of all 120 dirt biking rides in California.