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Motorcycle Ride Planner · Routes · United States

The Snake 421 (Holston Mountain Pass)

United States · US-421

33Miles
489Corners
14.8Per mile
9.0/10Difficulty

Carving across two distinct mountain ranges and through the high agricultural hollow of Shady Valley, The Snake packs 489 curves into 33 miles. The western leg climbs Holston Mountain with relentless off-camber hairpins and switchbacks through Cherokee National Forest, drops into the historic Shady Valley General Store crossroads, and then immediately climbs Iron Mountain before descending into Mountain City. It features tighter, more technical sequences than the Dragon with active farm access, occasional gravel washouts on blind downhill apices, and sudden elevation changes.

The Snake 421 (Holston Mountain Pass) runs 33 miles between Bristol / Holston Valley, TN and Mountain City, TN. We count about 489 corners along it, which is relentless. A hard road that rewards experience and punishes bravado.

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Somewhere to stop

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Questions riders ask

How long does The Snake 421 (Holston Mountain Pass) take to ride?
About 33 miles. At an unhurried pace with stops that is roughly 1 hour of riding, longer if you are stopping for photographs.
Where does The Snake 421 (Holston Mountain Pass) start and end?
It runs between Bristol / Holston Valley, TN and Mountain City, TN. Either end works as a start; the route reads the same in both directions.
Is The Snake 421 (Holston Mountain Pass) a twisty road?
We count about 489 corners across 33 miles, which is relentless.
Is there a GPX file for The Snake 421 (Holston Mountain Pass)?
Yes. The GPX is free, there is no account, and the planner will build a route that includes this road alongside others nearby.

Where these numbers come from

Distances and corner counts come from the route's own geometry, not from ratings or votes. Nothing here is crowdsourced and nobody paid to appear.