New Hampshire · Rock climbing · Nottingham · Near Derry

Swirley Boulder

17 routes
V1- – V13
Bouldering
Apr–Oct
best months

Swirley Boulder is a bouldering area in Pawtuckaway State Park in New Hampshire, managed by the State Department of Natural Resources. It sits among a cluster of other climbing areas, including Blair Woods, Wetworks Area and Dynamics Boulder, all within about a tenth of a mile. The closest trail is Blair Loop Trail, about 0.2 miles away. The area has 17 bouldering routes, all rated on the V scale from V1- up to V13. The median grade is V8, and the hardest route is Child of the Storm at V13. Dave Graham is listed as the first ascender of Uncle Climax, Rat Fish Dyno and Child of the Storm. Summer is the warmest stretch for climbing. Typical averages from a nearby weather station in Epping run to highs around 82°F in July, with September still near 73°F. Winters are cold, with January highs around 33°F and lows near 14°F.

Around this trail

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

    Youth Group Campground

    Campground

    Campground · 1.5 mi from the trail
  • Eat after

    Papas Country Kitchen

    Fast food

    On your way back · 5 mi
  • If it rainsDebraHardy, CC BY-SA 3.0 · Wikimedia Commons

    Folsom Tavern

    Museum

    Museum · 14 mi from Derry

Places © OpenStreetMap contributors · Photos: DebraHardy, CC BY-SA 3.0 (commons)

More in Derry
  • Best time to go · Apr–Oct

    Best time to visit Swirley Boulder

    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

      33° / 14°

      10 wet

    2. Feb

      35° / 16°

      8 wet

    3. Mar

      44° / 24°

      10 wet

    4. Apr

      57° / 34°

      11 wet

    5. May

      68° / 44°

      11 wet

    6. Jun

      76° / 54°

      11 wet

    7. Jul

      82° / 59°

      11 wet

    8. Aug

      81° / 57°

      9 wet

    9. Sep

      73° / 50°

      9 wet

    10. Oct

      61° / 38°

      10 wet

    11. Nov

      49° / 30°

      10 wet

    12. Dec

      38° / 21°

      11 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Epping, NH, 6.4 mi away at 160 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Routes (17)