|Nevada/Utah Border : Terminus of UT SR #21
||Nevada/Utah Border, This is where Utah State Route #21, begins its southeast journey and ends at a junction with State Route #160 at Beaver, Utah.
|Junction State Route #159
||Junction State Route #159, to Border, Utah, a community in Millard County, Utah, located north of here on the Utah/Nevada State Line.
||Garrison, Utah, a town in Millard County, Utah, Utah Department of Transportation yard and office, is located here in Garrison, Utah, along Utah State Route #21.
|Access : Lake
||Access Road, to Pruess Lake, a small spring-fed lake in Snake Valley, Millard County, just off State Route #21, Several springs flow into the lake, The lake is a popular local recreation spot for fishing and minor boating/floating,
|Road to : Lexington Arch
||National Forest Development 450 Road, to Lexington Arch in Great Basin National Park, in Nevada,
|Road to Burbank, UT
||Road to Burbank, Utah, a small farming community in Millard County, Utah, lying in the Snake Valley,
|Cowboy Road : Reservoir
||Cowboy Road, Mormon Gap Reservoir, a small reservoir located just east of State Route #21,
|S 28400 W Street : Desert Biosphere Reserve
||S 28400 W Street, The Desert Biosphere Reserve and Experimental Range, a biosphere reserve and experimental range, established in 1933 in Utah.
|Desert Road to Wah Wah Mountains
||Desert Road to/around, The Wah Wah Mountains, a north-south trending range in west-central Utah, part of the larger Basin and Range Province.
|Road to : Newhouse, UT
||Road to Newhouse, Utah, a ghost town located on the eastern edge of the Wah Wah Valley, Utah. It was once was a mining town for silver.
||Road to, Frisco, Utah, a ghost town, was once actively mining silver from 1879 to 1929. Now stands deserted, located along the State Route #21.
|Road to : Reservoir
||Road to, Lower Big Wash Reservoir, a reservoir located just off State Route #21,
|Junction State Route #257: Milford, UT
||Junction State Route #257, Milford, Utah, a city in Beaver County, Utah, Milford Valley Hospital, Milford Municipal Airport, a public airport located about 2 Kms north of Milford, Utah, along State Route #257.
||State Route #130/Center Street, Minersville Town Library, Minersville, Utah, a town in Beaver County, Utah,
|Access : State Park
||Access to, Minersville State Park, a state park located on the southeastern shore of Minersville Reservoir, just off State Route #21, Minersville State Park Campground, a campground within the State Park,
|Main St. : Adamsville, UT
||Main Street, Community of Adamsville, Utah,
|Main St. : Greenville, UT
||Main Street, Greenville, Utah, a community in eastern Beaver County, Utah, lies along State Route #21, Robinson-Tanner Reservoir, a reservoir lying nearby.
|Beaver, Ut : State Rte #21 Terminus
||Junction State Route #160, just east of Interstate Highway #15, Beaver, Utah, a city in Beaver County, Utah, This is where Utah State Route #21 ends. Beaver Public Library, Bear Valley Hospital, The William Burt House in Beaver, Utah was built in 1875, a historic place, listed on the National Register of Historic Places.
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