MTB⚠ Needs verification
SIMBA Group Rides
Southern Idaho Mountain Biking Association
Informal rides organized on Facebook
Rotating trailheads — Auger Falls, Indian Springs, canyon rim
Beginner-friendlyFreeSummer
Mountain Biking in Twin Falls
Group rides, women’s rides, and trail-work nights on local dirt.
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MTB⚠ Needs verification
Trail-Building & Dig Days
Southern Idaho Mountain Biking Association
Seasonal volunteer trail work — see Facebook
Local Magic Valley trail systems
Beginner-friendlyFreeSummer
Members have built ~20 miles of trail open to bikes and foot traffic.
MTB✓ Verified 2026-06-25
Saturday South Hills Group Ride
Saturday mornings · South Hills — call to confirm
Bull Moose Bicycles, 160 Main Ave N, Twin Falls
Beginner-friendlyFreeSummer
Shop also runs bikepacking trips and safety/maintenance classes.
MTB✓ Verified 2026-06-25
Wednesday Shop Ride
Wednesdays, 6:00pm · usually Indian Springs or Auger Falls
Epic Ride Bike & Ski, 2064 Kimberly Rd, Twin Falls
Beginner-friendlyFreeSummer
Free weekly ride leaving from the shop; call ahead to confirm seasonal timing.