Roads that are only suitable for off-road vehicles are often called jeep

Jeep

Jeep is an automobile marque of Chrysler . The first Willys Jeeps were produced in 1941 with the first civilian models in 1945, making it the oldest off-road vehicle and sport utility vehicle brand. It inspired a number of other light utility vehicles, such as the Land Rover which is the second...

 trails.

The most famous is the Rubicon Trail

Rubicon Trail

The Rubicon Trail is a 22-mile-long route, part road and part 4x4 trail, located in the Sierra Nevada of the western United States, due west of Lake Tahoe and about east of Sacramento....

 located near Lake Tahoe

Lake Tahoe

Lake Tahoe is a large freshwater lake in the Sierra Nevada of the United States. At a surface elevation of , it is located along the border between California and Nevada, west of Carson City. Lake Tahoe is the largest alpine lake in North America. Its depth is , making it the USA's second-deepest...

 in California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. The so-called "Jeep Trail Capital of the World," however, is Ouray, Colorado

Ouray, Colorado

The historic City of Ouray is a Home Rule Municipality that is the county seat and the most populous city of Ouray County, Colorado, United States. The city population was 813 at the U.S. Census 2000 and 1,000 as of the U.S. Census 2010...

 (that is the Ouray town motto). Ouray serves as a hub to mountain pass

Mountain pass

A mountain pass is a route through a mountain range or over a ridge. If following the lowest possible route, a pass is locally the highest point on that route...

es such as Engineer Pass and Cinnamon Pass (together forming the Alpine Loop National Back Country Byway), Imogene Pass

Imogene Pass

Imogene Pass is a high mountain pass in the San Juan Mountains in the southwest part of the US state of Colorado....

, and Black Bear Pass. Trails in the Moab, Utah

Moab, Utah

Moab is a city in Grand County, in eastern Utah, in the western United States. The population was 4,779 at the 2000 census. It is the county seat and largest city in Grand County. Moab hosts a large number of tourists every year, mostly visitors to the nearby Arches and Canyonlands National Parks...

 area include Hell's Revenge, Pritchett Canyon, Metal Masher, Moab Rim, Cliff Hanger and Poison Spider Mesa.