B
- Bullion Peak
- Bull Mountain
- Bull Pasture Trail
- Bull Run Occoquan Trail
- Bull Run Occoquan Trail
- Bull Run Occoquan Trail: Out-and-Back to Coe Creek
- Bull Run Trees
- Bulnes to Jou de Cabrones and the Cabrones refuge
- Bumble Bee
- Bumpass Hell
- Buncom Mixed-Surface Ride
- Buncom Mixed-Surface Ride
- Bunny Loop
- Bunsen Peak
- Buren (802m)
- Burfell Chute Loop
- Burgeralm
- Burgstall Rinne
- Burgstall Sattel
- Burgstall Wand
- Burke-Gilman Trail
- Burke-Gilman Trail
- Burke-Gilman Trail
- Burma Road
- Burn 2
- Burnt Bridge Creek Trail
- Burnt Stew Trail
- Burramoko Fire Trail (Hanging Rock), Blue Mountains
- Burro -> Mustang -> Javelina Loop
- Burro Trail
- Burroughs Mountain Loop
- Burro Wash
- Burro Wash
- Burstall Pass
- Burstinden
- Bus de Tofana
- Bush Key
- Bushranger Bay to Cape Schanck
- Bushrat
- Bushrat Shoulder
- Bushwhip
- Bushy Park 5-Mile Circular Route
- Business Time Loop
- Butler Fork Loop
- Butler Lodge Trail to The Forehead
- Butt Crack
- Buttermilk Bowls
- Buvette de la Floria
- Buvette de la Floria
- Buvette des Mottets
- Buvette des Mottets
- BX Creek, Corkscrew & Chakra
- BX Exit Chute
- Bypass Chutes
- Byron Glacier Trail
- Bystre Sedlo