Maine · Rock climbing · Pownal

The Cornerstone

7 routes
V0+ – V9-10
Bouldering
Aug–Oct
best months

The Cornerstone is a bouldering area in Bradbury Mountain State Park in Maine, managed by State Park and Recreation. It sits among several other climbing and hiking spots within a short distance, including the Southern Boulder Patch and the Link Trail, all about 0.1 mile away. The area has seven bouldering routes, all rated on the V scale. The easiest is Grown Ocean at V0+, and the hardest is The Loaf at V9-10. The median grade is V6. The routes include Heaven at V3-4 and Sub Zero at V6. Summer is the most comfortable time to visit. Typical averages from a nearby weather station in Gray, Maine, show July highs around 79°F with lows near 60°F, while winter brings highs in the 30s and regular snow days from December through February. Paddlers can find Chandler Brook about 2.7 miles away and the Royal River Water Trail about 4.2 miles away.

  • Best time to go · Aug–Oct

    Best time to visit The Cornerstone

    Best months: August–October. 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

      30° / 14°

      11 wet · 9 snow

    2. Feb

      33° / 16°

      10 wet · 8 snow

    3. Mar

      41° / 25°

      11 wet · 6 snow

    4. Apr

      53° / 34°

      12 wet · 2 snow

    5. May

      64° / 44°

      13 wet

    6. Jun

      73° / 54°

      13 wet

    7. Jul

      79° / 60°

      13 wet

    8. Aug

      78° / 59°

      11 wet

    9. Sep

      70° / 52°

      10 wet

    10. Oct

      58° / 41°

      11 wet

    11. Nov

      46° / 31°

      11 wet · 3 snow

    12. Dec

      35° / 21°

      12 wet · 7 snow

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Gray, ME, 3.8 mi away at 378 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Routes (7)