Bureau of Land Management, Utah.
The White Wash Sand Dunes are located 48 miles northwest of Moab, and 25 miles southeast of Green River. The Sand Dunes themselves are delineated and fenced for open OHV play; cross country travel is allowed only in the open area. Outside this area, there are hundreds of miles of designated roads and trails to be enjoyed. All motorized travel outside the open area must stay on the designated routes. Staying on the designated routes helps keep these routes open for your enjoyment. Damage to adjoining private property has occurred, and is a threat to your continued enjoyment of this area. Staying on designated routes assures that you will not trespass on private property. If you observe any trespassing or damage, do your part to help White Wash and report these actions to the Grand County Sheriff’s Department at 435-259-8115 (or 911 for an emergency).
Whitewash Sand Dunes is an approximately 1400 acre open riding area just south of Green River, Utah. The open area is signed and fenced along the southern boundary to help people know what is legal for riding. Within the open area is white wash itself acting as a main artery for riders. On the south of the wash are the dunes. These dunes, while not the largest in Utah, are unique in that they have many Cottonwood trees growing directly out of the dunes. This creates a beautiful setting for riding and has attracted several movies in recent years to film there. Branching out from the open area are several trails which range from fast open desert riding to techy singletrack hopping up and down ledges and along cliff edges. There is something for everyone.
Please avoid the oil production facilities and the adjoining ranch, and never chase or harass livestock. When going through gates, leave them open or closed as you found them. You must stay on designated roads and trails when riding outside the dune area. These routes are marked with white arrows and/or white paint. Bighorn sheep inhabit this area; riders should avoid stressing these animals by giving them the space they need. The cottonwood trees growing in the White Wash area are quite unique. Please avoid damaging these trees -- give them wide berth to reduce potential for soil compaction.
To reach White Wash Sand Dunes, drive 13 miles east of Green River on Interstate 70. Take Ranch Exit 173 to the south. This county road is known locally as the Floy Wash Road. (This exit is seven miles west of U.S. Highway 191.) From I-70, continue southwest on the Floy Wash Road for 12 miles (be sure to bear right 4.5 miles from Interstate 70, and continue straight at 7.8 miles from Interstate 70). Go east (left) at 12.3 miles southwest of I-70. You will drive by some oil production facilities. Some of these are on private property and should be avoided. The Sand Dunes are visible from this intersection. There are two very large (natural) parking areas just west of the sand dunes. Larger vehicles may wish to consider parking at the area on the top of the hill.