Ruby Canyon

Ruby Canyon is a roughly 25 mile (40 km) long canyon on the

Colorado River The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid watershed that encompasses parts of seven U.S. s ...

located on the

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

border in the western

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

, and is a popular destination for

rafting Rafting and whitewater rafting are recreational outdoor activities which use an inflatable raft to navigate a river or other body of water. This is often done on whitewater or different degrees of rough water. Dealing with risk is often a ...

. The canyon takes its name from the red

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

cliffs which line the canyon walls. The only access to the canyon outside of rafting is provided by

Union Pacific Railroad The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Paci ...

(formerly

Denver and Rio Grande Western Railroad The Denver & Rio Grande Western Railroad , often shortened to ''Rio Grande'', D&RG or D&RGW, formerly the Denver & Rio Grande Railroad, was an American Class I railroad company. The railroad started as a narrow-gauge line running south from D ...

) between

Mack, Colorado Mack is an unincorporated community and a U.S. Post Office located about 10 miles east of the Colorado/Utah border in Mesa County, Colorado, United States. Mack is part of the Grand Junction Metropolitan Statistical Area. Description A post off ...

, and Westwater, Utah.

Amtrak The National Railroad Passenger Corporation, doing business as Amtrak () , is the national passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous U.S. States and nine cities in Canada ...

's ''

California Zephyr The ''California Zephyr'' is a passenger train operated by Amtrak between Chicago and the San Francisco Bay Area (at Emeryville), via Omaha, Denver, Salt Lake City, and Reno. At , it is Amtrak's longest daily route, and second-longest overall ...

'' follows this route through Ruby Canyon between

Grand Junction, Colorado Grand Junction is a home rule municipality that is the county seat and the most populous municipality of Mesa County, Colorado, United States. The city population was 65,560 at the 2020 United States Census, making Grand Junction the 17th mo ...

, and

Thompson Springs, Utah Thompson Springs, also officially known for a time as just Thompson, is a small census-designated place in central Grand County, Utah, United States. The population was 39 at the 2010 census. The town is just north of the east–west highway rou ...

. A popular attraction along the route are the words "Utah , Colorado" painted on the canyon wall at the border between the two states next to the Utaline Siding. Colorado River Protected areas of Mesa County, Colorado Canyons and gorges of Grand County, Utah Canyons and gorges of Colorado Canyons and gorges of Utah Denver and Rio Grande Western Railroad Bureau of Land Management areas in Colorado {{Utah-geo-stub