Maryland · Bouldering · Hydes

A.o.

V4-5
grade
Bouldering Pads
style
Apr–Jun, Aug–Nov
best months

One of the hardest problems catalogued at Alien Crag, representing the upper end of the grade span across the four routes established here.

  • Nearby · Biceps Wall · Moby Dick and Trailer Boulders · Titanic Area
  • Best time to go · Apr–Jun, Aug–Nov

    Best time to visit A.O.

    Best months: April–June and August–November. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      42° / 25°

    2. Feb

      44° / 27°

    3. Mar

      52° / 33°

    4. Apr

      65° / 43°

    5. May

      73° / 53°

    6. Jun

      82° / 62°

    7. Jul

      86° / 68°

    8. Aug

      84° / 66°

    9. Sep

      78° / 59°

    10. Oct

      67° / 46°

    11. Nov

      56° / 37°

    12. Dec

      46° / 30°

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Aberdeen Phillips Fld, MD, 14 mi away at 57 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Keep exploring — more climbs worth the drive

Biceps WallPhoto: michaelwm25, CC BY 3.0 (via Wikimedia Commons)

Biceps Wall

~16 min drive

Biceps Wall in Maryland has 6 climbing routes on 6 difficulty grades.

Moby Dick and Trailer BouldersPhoto: michaelwm25, CC BY 3.0 (via Wikimedia Commons)

Moby Dick and Trailer Boulders

~16 min drive

6 bouldering routes in Maryland ranging across 6 difficulty grades.

Titanic AreaPhoto: michaelwm25, CC BY 3.0 (via Wikimedia Commons)

Titanic Area

~16 min drive

Titanic Area in Maryland has 5 bouldering routes across 5 difficulty grades.

Friction WallPhoto: Jstuby, CC BY-SA 3.0 (via Wikimedia Commons)

Friction Wall

~44 min drive

Friction Wall in Maryland has 10 climbing routes across 9 difficulty grades.

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Positive Systems Boulder

Next door

5 bouldering routes at Positive Systems Boulder in Maryland.

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Fallston Boulder Garden

Next door

Fallston Boulder Garden in Maryland has 13 bouldering routes across 10 difficulty grades.

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Hot Spot Boulder

Next door

Hot Spot Boulder in Maryland has 8 bouldering routes across 4 difficulty grades.

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Little Gunpowder Boulders

~2 min drive

Little Gunpowder Boulders in Maryland has 6 bouldering routes across 4 difficulty grades.

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Little Gunpowder Falls Crag

~3 min drive

Little Gunpowder Falls Crag in Maryland has 8 routes across 6 grades, offering top-rope and trad climbing.

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Fox Hill Crag

~8 min drive

Fox Hill Crag in Maryland has 4 climbing routes across 4 grades, offering bouldering and top-rope options.