Colorado · Rock climbing · Castle Rock

Rail Boulder Area

Rail Boulder Area is a Colorado bouldering crag with 5 routes.

Rail Boulder AreaPhoto: gregor_y, CC BY-SA 2.0 (via Flickr)
5 routes
V0 – V3
Bouldering

Best time to visit Rail Boulder Area

Best months: April–June and 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

    46° / 18°

    4 wet

  2. Feb

    47° / 20°

    5 wet

  3. Mar

    54° / 27°

    5 wet

  4. Apr

    59° / 33°

    6 wet

  5. May

    68° / 42°

    8 wet

  6. Jun

    80° / 50°

    8 wet

  7. Jul

    86° / 56°

    9 wet

  8. Aug

    84° / 55°

    9 wet

  9. Sep

    77° / 47°

    6 wet

  10. Oct

    65° / 35°

    4 wet

  11. Nov

    54° / 26°

    4 wet

  12. Dec

    46° / 18°

    5 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Castle Rock, CO, 5.9 mi away at 6,185 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

The Rail Boulder Area is a climbing area on city land within Hidden Mesa (Castle Rock) in Colorado. It sits among a cluster of bouldering and hiking spots, with Legacy Trail Bouldering just 0.1 mile away and the Legacy Trail about 0.3 mile off. For comfortable weather, aim for late spring or early fall. Typical averages from the nearby Castle Rock weather station show May highs around 68°F and September highs around 77°F, with July peaking near 86°F. Other climbing areas close by include Mitchell Creek Canyon, about 0.8 mile away, and Pandemic Caves, about 0.9 mile away. For an overnight stay, The Pinery RV Lot is roughly 4.9 miles away.