All articles starting with U
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U.S. Route 50 in Nevada
U.S. Route 50 in Nevada, called the Loneliest Road in America, is a 300-plus-mile highway crossing the state from Lake Tahoe to Great Basin National Park.
U.S. Route 51
U.S. Route 51 is an original 1926 US highway running 1,277 miles from LaPlace, Louisiana, to Hurley, Wisconsin, through six states including Tennessee and Illinois.
U.S. Route 53
U.S. Route 53, also known as US 53, is a United States Numbered Highway running about 400 miles from La Crosse, Wisconsin, to International Falls, Minnesota, on the Canadian border.
U.S. Route 54
U.S. Route 54 is a United States Numbered Highway designated in 1926, running from El Paso, Texas, northeast through New Mexico, Oklahoma, Kansas, and Missouri to Pittsfield, Illinois.
U.S. Route 550
U.S. Route 550 is a United States Numbered Highway running from Bernalillo, New Mexico, to Montrose, Colorado, including the scenic Million Dollar Highway between Ouray and Silverton.
U.S. Route 6
U.S. Route 6, also called the Grand Army of the Republic Highway, is a highway running 3,249 miles from Provincetown, Massachusetts, to Bishop, California; it was once the country's longest road.
U.S. Route 62
U.S. Route 62 is a U.S. numbered highway from El Paso, Texas, to Niagara Falls, New York, crossing ten states; distinct from state routes numbered 62 in California, Minnesota, and elsewhere.
U.S. Route 64
U.S. Route 64, also known as U.S. 64, is a 2,326-mile United States Numbered Highway from Arizona to North Carolina, crossing six states and dating to the 1926 national numbering plan.
U.S. Route 65
U.S. Route 65, or US 65, is a north-south United States Numbered Highway running 960 miles from Albert Lea, Minnesota, to Clayton, Louisiana, through Des Moines and Little Rock.
U.S. Route 66
U.S. Route 66, popularly known as the "Mother Road," ran about 2,400 miles from Chicago to Los Angeles through eight states; it was decommissioned in 1985.
U.S. Route 68
U.S. Route 68 (US 68) is a United States Numbered Highway about 552 miles long, running from Reidland, Kentucky, through Lexington to Findlay, Ohio. It was one of the original 1926 routes.
U.S. Route 7
U.S. Route 7 (US 7) is a 308-mile north–south United States highway in western New England, running from Norwalk, Connecticut, to Highgate Springs, Vermont, just south of the Canadian border.
U.S. Route 70
U.S. Route 70 (US 70) is a United States Numbered Highway running east-west for 2,385 miles from Atlantic, North Carolina, to Globe, Arizona, and is an original 1926 route.
U.S. Route 74
U.S. Route 74, also known as US 74 or the Andrew Jackson Highway, is a highway from Wrightsville Beach, North Carolina, to I-75 in Cleveland, Tennessee.
U.S. Route 8
U.S. Route 8 (US 8) is a 279.6-mile east-west United States Numbered Highway from Forest Lake, Minnesota, to Norway, Michigan, crossing northern Wisconsin and designated in 1926.
U.S. Route 85
U.S. Route 85, also known as US 85, is a north-south United States highway from Canada to Mexico, an original 1926 route and a major freight corridor.
U.S. Route 87
U.S. Route 87, or US 87, is a United States Numbered Highway running from Port Lavaca, Texas, on the Gulf Coast to Havre, Montana, through the Texas Panhandle and eastern New Mexico.
U.S. Route 89
U.S. Route 89, the National Park Highway, runs 1,215 miles from Flagstaff, Arizona to the Canadian border near Babb, Montana through seven national parks; originally a 1,600-mile border-to-border route designated in 1927.
U.S. Route 97
U.S. Route 97 (US 97) is a north-south United States highway running from the Canada–US border at Oroville, Washington, through eastern Washington and central Oregon to Weed, California.
U.S. Route 98
U.S. Route 98 (US 98) is a 928-mile east–west United States Numbered Highway running from Natchez, Mississippi, to Palm Beach, Florida, following the Gulf Coast for much of its length.
U.S. Route 99
U.S. Route 99 was a United States numbered highway, 1,499 miles from Blaine, Washington, to Calexico, California, decommissioned after Interstate 5 replaced it in the 1960s and 1970s.
U.S. Securities and Exchange Commission
U.S. Securities and Exchange Commission (SEC), independent federal regulator created by the Securities Exchange Act of 1934; protects investors, maintains fair markets, facilitates capital formation; five commissioners, oversees exchanges, broker-dealers, FINRA, and NRSROs.
U.S. Senior Open
U.S. Senior Open (United States Senior Open Championship), USGA national golf championship for players 50 and older since 1980; first won by Roberto De Vicenzo at Winged Foot; Miller Barber and Padraig Harrington hold three titles each.
U.S. Ski and Snowboard
U.S. Ski and Snowboard, legally the United States Ski Association, is the national governing body for Olympic and Paralympic skiing and snowboarding in the United States.
U.S. Ski and Snowboard Hall of Fame
The U.S. Ski and Snowboard Hall of Fame is the national hall of fame for American skiers and snowsport contributors, established in 1954 in Ishpeming, Michigan, with over 430 honored members.
U.S. Space & Rocket Center
The U.S. Space & Rocket Center is a state-owned space museum in Huntsville, Alabama, opened in 1970, home of Space Camp, and official visitor center for NASA's Marshall Space Flight Center.
U.S. standard clothing size
U.S. standard clothing size: voluntary body-measurement tables for American ready-to-wear, once set by NBS Commercial Standard CS215-58 (1958, withdrawn 1983), now maintained by ASTM International (D5585, D6240), with widespread vanity sizing.
U.S. state
U.S. state: one of 50 constituent units sharing sovereignty with the federal government, each with its own constitution. Distinguished by Tenth Amendment reserved powers, congressional admission under Article IV, and 144 state constitutions since 1776.
U.S. state and territory temperature extremes
The U.S. state and territory temperature extremes are NOAA-certified record highs and lows for all 50 states, D.C., and inhabited territories, including the 134°F Death Valley world record.
U.S. Steel
U.S. Steel, formally United States Steel Corporation, is an American steelmaker founded in Pittsburgh in 1901 by J.P. Morgan and Andrew Carnegie, acquired by Nippon Steel in 2025.