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The best twisty roads around Foster Ranch

9 twisty stretches · 170 km of twisty road within reach of Foster Ranch — joined from OpenStreetMap geometry and scored by NavForge's map pipeline. Paved, unpaved and flowing stretches ranked separately.

Every twisty stretch of road within 60 km of Foster Ranch, Idaho — whole roads joined from OpenStreetMap geometry, walked a kilometre at a time and ranked by twisty kilometres. The best unsealed one is Yellowjacket Road (NF 112) · Forney → Mormon Ranch with 36.7 twisty km. Click a road to see it on the map above, or take the GPX.

9
Stretches within 60 km
170 km
Twisty kilometres
618
Tight corners
0 / 8
Sealed / unsealed shown
Salmon River Scenic Byway (ID 75) · Sunbeam → Stanley

Flowing
Paved 100%

11.0 km · 0.0 twisty km · best km 6
km 66–77.1 of 274.3

Score 5 · Moderate

Yellowjacket Road (NF 112) · Forney → Mormon Ranch

Unpaved & 4WD
Gravel/Dirt 0%
4WD track — check access

41.7 km · 36.7 twisty km · best km 13 · ~137 tight corners
km 6–47.7 of 47.7

Score 9 · High

Sleeping Deer Road

Unpaved & 4WD
Gravel/Dirt 0%

32.0 km · 32.0 twisty km · best km 11 · ~118 tight corners · 2 hairpins
km 1–33 of 51.4

Score 9 · High

FD 45 · Williams Lake Resort → Elk Bend

Unpaved & 4WD
Gravel/Dirt 0%

27.5 km · 23.4 twisty km · best km 10 · ~127 tight corners · 2 hairpins
km 0–27.5 of 27.5

Score 8 · High

Thunder Mountain Road (NF 375) · Thunder City → Midnight

Unpaved & 4WD
Gravel/Dirt 0%

22.3 km · 17.3 twisty km · best km 11 · ~38 tight corners
km 0–22.3 of 22.3

Score 8 · High

Loon Creek Road · Loon Creek Guard Station → Custer City

Unpaved & 4WD
Gravel/Dirt 0%

23.0 km · 17.0 twisty km · best km 12 · ~27 tight corners
km 1–24 of 33.1

Score 9 · High

Beaver Creek Road (NFSR 008) · Seafoam FS Station → Langer Monument

Unpaved & 4WD
Gravel/Dirt 0%
4WD track — check access

23.0 km · 17.0 twisty km · best km 13 · ~38 tight corners
km 0–23 of 23.9

Score 9 · High

Pennal Gulch Trail · near Challis

Unpaved & 4WD
Gravel/Dirt 0%
4WD track — check access

14.1 km · 14.1 twisty km · best km 12 · ~79 tight corners · 2 hairpins
km 0–14.1 of 14.1

Score 10 · High

Deep Spring Road (NF 231) · Cobalt → Blackbird

Unpaved & 4WD
Gravel/Dirt 0%
4WD track — check access

14.5 km · 12.5 twisty km · best km 11 · ~54 tight corners
km 0–14.5 of 14.5

Score 9 · High

Twisty roads near here

Loon Creek Guard Station 27 km
Custer City 29 km
Mormon Ranch 32 km
Challis 35 km
Sunbeam 48 km
Langer Monument 49 km
Williams Lake Resort 50 km
Stanley 51 km
Cobalt 54 km
Thunder City 55 km

All twisty roads in Idaho · Road geometry © OpenStreetMap contributors (ODbL), scored by NavForge’s map pipeline. “4WD track — check access” means OpenStreetMap does not say whether the track is gated. Get NavForge Premium to route through these roads automatically — fully offline.

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