page_title: U.S. Route 421
section_title: Tennessee
hierarchical_section_title: U.S. Route 421 / Route description / Tennessee
caption_attribution_description: English: U.S. Highway 421 northbound near Bristol, Tennessee. Français&#160;: La route 421 en direction du nord, à proximité de Bristol, dans le Tennessee.
context_page_description: U.S. Route 421 is a spur route of U.S. 21. It runs for 941 miles from Fort Fisher, North Carolina south of Wilmington to Michigan City, Indiana at U.S. 20.
context_section_description: US Highway 421 enters Tennessee from North Carolina in Trade. It is the oldest crossroads community in Tennessee and is the easternmost part of the state. The road "as the crow would fly" is a short distance in Volunteer State but traverses through two mountain ranges. After Trade, it ventures into Mountain City through a 40 mph (64 km/h) zone while bypassing the downtown area. After Mountain City, begins the two mountain ranges and in between them is the area of Shady Valley. After the second mountain range, it flattens out after the South Fork Holston River heading towards Bristol. US 421 enters Virginia on the Old Dominion side of Bristol. Major highway junctions between the NC and VA state lines are SR-67 in Mountain City, SR-91 the new Mountain City bypass, SR-394, and US 11E.
caption: U.S. 421 near Bristol (2006-06-11).
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