Tremendous geological upheavals pushed through the Earth's surface eons ago, forming a giant oval-shape dome of rock about 80 miles long and 30 miles wide, giving rise to the name "swell." Over the years, the harsh climate beat down the dome, eroding it into a wild array of multicolor sandstone and creating buttes, pinnacles, mesas, and canyons that spread across nearly 1 million acres—an area larger than the state of Rhode Island.
Managed by the Bureau of Land Management, the Swell offers visitors spectacular sights similar to those in Utah's national parks but without the crowds. In the northern Swell, the Wedge Overlook peers into the Little Grand Canyon with the San Rafael River below, for one of the most scenic vistas in the state. The strata at the edges of the southern Swell are angled nearly vertical, creating the San Rafael Reef. Both are known for fantastic hiking, canyoneering, and mountain biking. As recently as 2018, proposals have been made to designate the Swell a national monument; until then, the San Rafael Swell remains one of the little-known natural wonders of the American West.
Interstate 70 bisects the San Rafael Swell and is the only paved road in the region. Although there are many off-road opportunities, the main gravel road and many of the graded dirt roads through the Swell are accessible to two-wheel-drive vehicles. The Swell is about 25 miles south of Price (typically considered the main gateway to the Swell), and the setting is so remote that it's essential you bring whatever supplies you might need, including plenty of water, food, and a spare tire. For directions on how to access the San Rafael Swell viewing area from Green River, turn to the Green River section of the Moab and Southeastern Utah chapter. Always keep your wits about you, as flash flooding can be deadly, especially in the Swell's narrow slot canyons.