Routes & places
- Route · Skiing
Bobcat Bowl
Maryland
- 0.1 km mapped
- Grade advanced
- RouteRoute · Climbing
Booze Cruise
Maryland
- Grade V-easy
- bouldering
- Route · Skiing
Boulder Run
Maryland
- 0.4 km mapped
- Grade intermediate
- Route · Cycling
Boundary Line
Frederick Watershed
- 1.6 km mapped
- Grade 2
- Route · Cycling
Box Turtle Trail (purple)
Maryland
- 4.1 km mapped
- Grade 1
- Route · Cycling
Box Turtle Trail Bypass (purple/white)
Maryland
- 0.1 km mapped
- Grade 1
- RouteRoute · Climbing
Bread And Butter
Maryland
- Grade 5.6
- toprope
- RouteRoute · Climbing
Breakaway's Escape Hatch
Maryland
- Grade 5.5
- trad
- RouteRoute · Climbing
Brian's Terrible, Horrible, No Good, Very Bad Day
Maryland
- Grade V7
- bouldering
- Route · Cycling
Brick Trail Loop (blue)
Bacon Ridge
- 3 km mapped
- Grade 1
- RouteRoute · Climbing
Bright Lights
Maryland
- Grade V1
- bouldering
- RouteRoute · Climbing
Brown Recluse
Maryland
- Grade V5
- bouldering
- RouteRoute · Climbing
Brown Recluse Low
Maryland
- Grade V5
- bouldering
- RouteRoute · Climbing
Buckets of blood (overhang)
Maryland
- Grade V7
- bouldering
- RouteRoute · Climbing
Buckets of Blood Arete
Maryland
- Grade 5.11
- toprope
- RouteRoute · Climbing
Buddy
Maryland
- Grade 5.8
- trad
- RouteRoute · Climbing
Bulge Tour
Maryland
- Grade V3
- bouldering
- RouteRoute · Climbing
Bulging Crack
Maryland
- Grade 5.6
- trad
- toprope
- Route · Cycling
Bull Run Trail
Maryland
- 0.6 km mapped
- Grade 2
- RouteRoute · Climbing
Butter Balls
Maryland
- Grade V2
- bouldering
- RouteRoute · Climbing
Butterfingers
Maryland
- Grade 5.8+
- trad
- toprope
- RouteRoute · Climbing
Butterfingers Right
Maryland
- Grade 5.10a
- trad
- toprope
- RouteRoute · Climbing
Butterfly
Maryland
- Grade 5.9
- toprope
- RouteRoute · Climbing
Byrds Nest Overhang
Maryland
- Grade 5.11c
- toprope