U.S. Route 93 (US 93) is a major north–south United States highway in the western United States. The southern terminus is at US 60 in Wickenburg, Arizona. The northern terminus is at the Canada–US border north of Eureka in Lincoln County, Montana, where the roadway continues into Roosville, British Columbia, as Highway 93. Major cities that US 93 travels through include: Kingman, Arizona; Las Vegas, Nevada; Twin Falls, Idaho; and Missoula, Montana.
U.S. Route 97 (US 97) is a major north–south route of the United States Numbered Highway System in the Pacific Northwest region. It runs for approximately 670 miles (1,078 km) through the states of California, Oregon, and Washington, primarily serving interior areas on the east side of the Cascade Mountains. The highway terminates to the south at a junction with Interstate 5 (I-5) in Weed, California, and to the north at the Canadian border near Osoyoos, British Columbia, where it becomes British Columbia Highway 97. Major cities on the US 97 corridor include Klamath Falls, Bend, and Redmond in Oregon; and Yakima, Ellensburg, and Wenatchee in Washington. A portion of the highway in California and Oregon is part of the Volcanic Legacy Scenic Byway.
The Beartooth Highway is an All-American Road on a section of U.S. Route 212 in Montana and Wyoming between Red Lodge and the Northeast entrance of Yellowstone National Park, passing over the Beartooth Pass in Wyoming at 10,947 feet (3,337 m) above sea level. It has been called "the most beautiful drive in America," by late CBS correspondent Charles Kuralt. Because of heavy snowfall at the top, the pass is usually open each year only from mid May through mid October, weather conditions permitting.
U.S. Route 550 (US 550) is a spur of U.S. Highway 50 that runs from Bernalillo, New Mexico to Montrose, Colorado in the western United States. The section from Silverton to Ouray is frequently called the Million Dollar Highway. It is one of the roads on the Trails of the Ancients Byway, one of the designated New Mexico Scenic Byways.
U.S. Route 89 is a north–south United States Numbered Highway with two sections, and one former section. The southern section runs for 848 miles (1,365 km) from Flagstaff, Arizona, to the southern entrance of Yellowstone National Park. The northern section runs for 404 miles (650 km) from the northern entrance of Yellowstone National Park in Montana, ending at the Canadian border. Unnumbered roads through Yellowstone connect the two sections. Before 1992, US 89 was a Canada–Mexico, border-to-border highway that ended at Nogales, Arizona, on its southern end.
U.S. Route 191 is a spur of U.S. Route 91 that has two branches. The southern branch runs for 1,465 miles (2,358 km) from Douglas, Arizona on the Mexican border to the southern part of Yellowstone National Park. The northern branch runs for 440 miles (710 km) from the northern part of Yellowstone National Park to Loring, Montana, at the Canada–US border. Unnumbered roads within Yellowstone National Park connect the two branches. The highway passes through the states of Arizona, Utah, Wyoming, and Montana.
The State Scenic Highway System in the U.S. state of California is a list of highways, mainly state highways, that have been designated by the California Department of Transportation (Caltrans) as scenic highways. They are marked by the state flower, a California poppy, inside either a rectangle for state-maintained highways or a pentagon for county highways.
State Route 410 is a 107.44-mile (172.91 km) long state highway that traverses Pierce, King, and Yakima counties in the US state of Washington. It begins at an interchange with SR 167 in Sumner and travels southeast across the Cascade Range to a junction with U.S. Route 12 (US 12) in Naches. While the western part of SR 410 is a freeway that serves built-up, urban areas, the remainder of the route is a surface road that traverses mostly rural areas as it passes through the mountains.
State Route 4 (SR 4) is a 62.27-mile-long (100.21 km) state highway, serving the southwestern region of the U.S. state of Washington. The highway, also known as Ocean Beach Highway, travels east along the Columbia River from U.S. Route 101 (US 101) at Johnston's Landing through Pacific, Wahkiakum and Cowlitz counties to an interchange with Interstate 5 (I-5) in Kelso. SR 4 is designated as part of the Lewis and Clark Trail Scenic Byway, a state scenic byway, as well as part of the National Highway System.
Wyoming Highway 296 (WYO 296) also known as the Chief Joseph Scenic Byway is a 45.96-mile-long (73.97 km) state highway in the U.S. state of Wyoming and follows the route taken by Chief Joseph as he led the Nez Perce Indians out of Yellowstone National Park and into Montana in 1877 during their attempt to flee the U.S. Cavalry and escape into Canada.
State Highway 12, also known as the Scenic Highway of Legends, in the U.S. state of Colorado is a mountainous state highway through the Rocky Mountains in southern Colorado. The route travels from La Veta through the mountains to Trinidad. It is included in the Colorado Scenic and Historic Byways system and runs through the San Isabel National Forest. In 2021, the highway was designated a National Scenic Byway.
Wyoming Highway 130 is a 98.52-mile-long (158.55 km) state highway in the U.S. State of Wyoming. It is known locally as the Snowy Range Road. It makes its way west from Laramie across the plains, and rises over the Medicine Bow Mountains. The road then turns north through the town of Saratoga, and ends at Interstate 80 (I-80). The stretch of road over the mountains is a National Forest Byway. WYO 130 over Snowy Range Pass is closed during winter (November–May)
State Highway 55 (SH-55) is an Idaho highway from Marsing to New Meadows, connecting with US-95 at both ends.
The Dinosaur Diamond Prehistoric Highway is a 512-mile-long (824 km) National Scenic Byway in the U.S. states of Utah and Colorado. The highway forms a diamond-shaped loop with vertices at Moab, Helper, Vernal and Grand Junction.
State Highway 200 (SH-200) is an east–west state highway in northern Idaho, United States. It travels along the north side of Lake Pend Oreille and the Clark Fork River between the Sandpoint area and the Montana border, where it continues as Montana Highway 200. The highway is also a national scenic byway that is named the Pend Oreille Scenic Byway. This state highway is part of a continuous chain of similarly numbered state highways that stretch from Minnesota to Idaho.
State Highway 75 is a two-lane highway that travels through the Sawtooth Valley of central Idaho. The highway's southern terminus is in Shoshone, and its northern is near Challis. It is designated as one of Idaho's scenic byways and provides access to Sawtooth National Recreation Area. It primarily follows the Big Wood River in the south and the main Salmon River in the north, divided by Galena Summit.
U.S. Highway 75 is a part of the United States Numbered Highway System that runs for 1,239 miles (1,994 km) from Dallas, Texas to Kittson County, Minnesota where it ends just short of the Canada–United States border. Within the State of Nebraska it is a state highway that enters Nebraska on the Kansas state line about 9 miles (14 km) south of Dawson and travels north across the extreme eastern portion of the state, to the Nebraska–Iowa border in South Sioux City where it crosses the Missouri River along a concurrency with Interstate 129. The northern 210 miles (340 km) of the route generally travels parallel to the Missouri River. The 87.32-mile (140.53 km) section between the I-680 interchange in Omaha and the Interstate 129 interchange is designated the Lewis & Clark Scenic Byway, one of nine scenic byways in the state.
U.S. Highway 89 (US 89) is a north-south United States Numbered Highway in the state of Montana. It extends approximately 400.5 miles (644.5 km) from Yellowstone National Park north to the Canadian border. US 89 is an important tourist route within Montana as it connects Yellowstone National Park and Glacier National Park. The section of US 89 located between US 12 and US 87 is known as the Kings Hill Scenic Byway, which passes through the Little Belt Mountains in the Lewis and Clark National Forest, and is home to a wide variety of wildlife and provides many recreational opportunities for travelers along the route.
State Route 153 (SR-153) is a state highway in the U.S. state of Utah. Just over half of the western portion of the highway has been designated the Beaver Canyon Scenic Byway as part of the Utah Scenic Byways and National Forest Scenic Byways programs.
The Trail of the Ancients is a National Scenic Byway located in the states of Colorado and Utah. The route highlights the archaeological and cultural history of southwestern Native American peoples, and traverses the widely diverse geological landscape of the Four Corners region of the Colorado Plateau. It was the first National Scenic Byway that was designated solely for its archaeological sites. The entire route is approximately 480 miles (772.5 km) long.
US 89 
