Kentucky road guide

Catalog route · Kentucky

US-421 (Harlan County Mountains)

  • 22.46 mi catalog itinerary
  • Kentucky

US-421's Harlan County mountain section adds a southeastern Kentucky road to the selection. The mapped itinerary is a specific portion of the highway, with mountain curves rather than a statewide through-route.

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Read more in the Best Driving Roads in Kentucky guide

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Exact catalog itinerary. White dot: start; orange dot: finish. Label-free satellite imagery: USGS The National Map. Loading a map sends tile requests to its provider; imagery is not live.