Connecticut · Rock climbing · Stamford · Near Mount Kisco

Old Mill Lane Boulder Field

8 routes
V0- – V6-
Bouldering
Apr–Oct
best months

Old Mill Lane Boulder Field is a bouldering area in Mianus Glen Park in Connecticut, about a tenth of a mile from Mianus Park. It sits among a cluster of climbing and hiking spots, with Slabs and Cave and Green Egg Boulder within half a mile and the Cabin Trail about 0.3 miles away. The field holds eight boulder problems, all rated from V0- to V6- on the V scale. Pentagon Traverse is the easiest at V0-, and Color Organ and Kaleidoscope are the hardest at V6-. Escape the Cave, a V1, was first climbed by Will S in December 2019. Late spring and early fall are the most comfortable times to go. Typical averages from a nearby weather station in Stamford run from highs around 72°F in May to about 76°F in September, with July the warmest at about 85°F.

Around this trail

Add any of these when you start a trip
  • Sleep close

    Lean-To Campsite #8

    Campground

    Campground · 10 mi from the trail
  • If it rainsCarol M. Highsmith, Public domain · Wikimedia Commons

    The Glass House

    Museum

    Museum · 4.6 mi from Mount Kisco

Places © OpenStreetMap contributors · Photos: Carol M. Highsmith, Public domain (commons)

More in Mount Kisco
  • Best time to go · Apr–Oct

    Best time to visit Old Mill Lane Boulder Field

    Best months: April–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

      38° / 22°

      11 wet

    2. Feb

      41° / 23°

      9 wet

    3. Mar

      49° / 30°

      10 wet

    4. Apr

      62° / 40°

      12 wet

    5. May

      72° / 50°

      12 wet

    6. Jun

      80° / 59°

      11 wet

    7. Jul

      85° / 64°

      10 wet

    8. Aug

      83° / 63°

      9 wet

    9. Sep

      76° / 56°

      9 wet

    10. Oct

      64° / 45°

      10 wet

    11. Nov

      53° / 35°

      10 wet

    12. Dec

      43° / 27°

      11 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Stamford 5 N, CT, 3.1 mi away at 190 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.