Granite GauntletBest · May – Sep
Needles Highway Loop
Keystone, SD → Needles Eye Tunnel → Sylvan Lake, SD → Keystone, SD
Loading map…
Pigtail bridges and tunnels bored through solid granite in the Black Hills. Bison own the road here — they always have right of way.
32 mi
Distance
1h 18m
Ride time
Unrated
Community rating
Difficulty
Ride reports
No ride reports yet. Be the first to weigh in.
Sign in to rate this ride or add it to your list.
Drop it into Garmin, Calimoto, or REVER and ride.