Highway 21 (AR 21, Ark. 21, and Hwy. 21) is a north–south

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

in north central Arkansas. The route of runs from

US Route 64 U.S. Route 64 (US 64) is an east–west United States highway that runs for 2,326 miles (3,743 km) from Nags Head in eastern North Carolina to just southwest of the Four Corners in northeast Arizona. The western terminus is at U.S. Route 16 ...

(US 64) in Clarksville north across

US 62 U.S. Route 62 or U.S. Highway 62 (US 62) runs from the Mexican border at El Paso, Texas, to Niagara Falls, New York, near the Canadian border. It is the only east-west United States Numbered Highway that connects Mexico and Canada ...

Missouri Route 13 Route 13 is a highway in Missouri which runs almost the entire north–south length of the state. Its northern terminus is at U.S. Route 69/ 136 in Bethany. Its southern terminus is at the Arkansas state line in downtown Blue Eye, Misso ...

at the

Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...

state line The route is a two-lane highway with the exception of a brief concurrency with

, a four-lane highway, in Berryville.

Route description

The route begins at

US 64 U.S. Route 64 (US 64) is an east–west United States highway that runs for 2,326 miles (3,743 km) from Nags Head in eastern North Carolina to just southwest of the Four Corners in northeast Arizona. The western terminus is at U.S. Route 1 ...

in Clarksville near the Clarksville Municipal Airport and runs north to the

Ozark National Forest The Ozarks, also known as the Ozark Mountains, Ozark Highlands or Ozark Plateau, is a physiographic region in the U.S. states of Missouri, Arkansas, Oklahoma and the extreme southeastern corner of Kansas. The Ozarks cover a significant port ...

. Highway 21 runs north to intersect Highway 292 near Ludwig and Ludwig Lake near Hillcrest in Johnson County. The route begins a

concurrency Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...

with

Highway 16 Route 16, or Highway 16, can refer to: International * Asian Highway 16 * European route E16 * European route E016 Australia - Thompsons Road (Victoria) - South Australia Canada ;Parts of the Trans-Canada Highway: *Yellowhead Hi ...

until Edwards Junction when Highway 21 turns north and serves as a southern terminus for Highway 43 at

Boxley Boxley is a village and civil parish in the Maidstone District of Kent, England. It lies below the slope of the North Downs approximately northeast of the centre of Maidstone town. The civil parish has a population of 7,144 (2001 census), inc ...

. Upon entering Madison County the highway intersects Highway 74 in Kingston and passes the

Bank of Kingston The Bank of Kingston is a historic commercial building at 101 Public Square in Kingston, Madison County, Arkansas. It is a single-story stone structure, built in 1911, notable for the use of pressed metal (provided by the noted Mesker Brothers of ...

, a property on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

. Continuing north, Highway 21 intersects

US 412 U.S. Route 412 is an east–west United States highway, first commissioned in 1982. U.S. 412 overlaps expressway-grade Cimarron Turnpike from Tulsa west to Interstate 35 and the Cherokee Turnpike from east of Chouteau, Oklahoma, to west of the ...

along the Carroll County line. Its southern terminus is officially at US 64 just east of Clarksville, though northbound it is posted as beginning at Interstate 40 running north along . The route is signed as a destination at exit 58 from

Interstate 40 Interstate 40 (I-40) is a major east–west Interstate Highway running through the south-central portion of the United States. At a length of , it is the third-longest Interstate Highway in the country, after I-90 and I-80. From west to ea ...

in Clarksville. Highway 21 is signed as running northbound along Highway 103 for then running east along US 64 for before meeting the true southern terminus.

Ozark Highlands Scenic Byway

A portion of Highway 21 was designated as the Ozark Highlands Scenic Byway in 2005 by the Arkansas State Highway and Transportation Department (AHTD). The byway begins at the southern terminus of Highway 21 at US 64 in Clarksville and runs north to the

Buffalo National River The Buffalo River, located in Northern Arkansas, was the first List of areas in the United States National Park System#National rivers and national wild and scenic rivers, National River to be designated in the United States. The Buffalo River i ...

near

. Wildlife and scenic views are frequent along the nearly route. The highway is popular as a major route to the

, the

Ozark Highlands Trail The Ozark Highlands Trail roams through parts of seven counties in northwest Arkansas. It stretches from Lake Fort Smith State Park, across the Ozark National Forest, to the Buffalo National River. The trail passes through some of the most remot ...

, and the White River in addition to being the major travel route to cities in the area and points in southern

Major intersections

Mile markers reset at some concurrencies.

Notes

References

External links

{{commons category-inline, Arkansas Highway 21

021 021 is: * in Brazil, the telephone area code for the city of Rio de Janeiro and surrounding cities (Greater Rio de Janeiro) * in China, the telephone area code for the city of Shanghai. * in Indonesia, the area code for the city of Jakarta and su ...