US-33 + Smoke Hole Road — Seneca Rocks switchbacks
Franklin to Seneca Rocks with a side loop on Smoke Hole Rd, ~35 mi combined. 180-degree switchbacks with 9% grades on US-33 climbing North Mountain. **Smoke Hole Road is more challenging** — narrow, no centerline, continuous blind curves and elevation changes.
154 mi
Length
0
Verified stops
—
High point
Scenic
Road type
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