West of Barstow and Adelanto in western San Bernardino County, the El Mirage Dry Lake OHV Area (aka Shadow Mountains) has 24,000 acres open to dirt bike riding. There is no speed limit on the open lakebed, but vehicle operators are responsible for their own safety, OHV rules and regulations, and knowing what is going on around them. The maximum speed limit is 15 miles per hour within 50 feet of camps and staging areas.
The dirt biking at the El Mirage OHV riding area is located west of Adelanto, California, between US Highway 395 and the Los Angeles County line. Most visitors enter from US Highway 395 near Adelanto by taking Chamberlaine Way (formerly Crippen Avenue) west to Koala Road (alternately you can exit US395 at Rancho Ave). Turn right on Koala Road and follow the signs toward the town of El Mirage. At El Mirage Road, turn left. Just east of the town of El Mirage, take Mountain View Road north to enter the El Mirage OHV Recreation Area. A sign located at this intersection will direct you to the recreation area.
If you are coming from Palmdale, take Palmdale Boulevard eastbound and turn north (left) at 240 th Street . Turn east (right) at Avenue P. At the San Bernardino County line, Avenue P becomes El Mirage Road. Follow El Mirage Road through the town of El Mirage. Just east of the town of El Mirage, take Mountain View Road north to enter the El Mirage OHV Recreation Area. A sign located at the intersection will direct you to the recreation area.