California · Rock climbing · Chatsworth

Spiral Boulder

Spiral Boulder in California has 6 bouldering routes with 6 difficulty grades.

Spiral BoulderPhoto: jxson, CC BY 2.0 (via Flickr)
6 routes
V0 – V2
Bouldering

Best time to visit Spiral Boulder

Best months: October–June. 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

    67° / 47°

    6 wet

  2. Feb

    68° / 47°

    7 wet

  3. Mar

    71° / 49°

    5 wet

  4. Apr

    75° / 52°

    3 wet

  5. May

    78° / 56°

    1 wet

  6. Jun

    84° / 60°

    1 wet

  7. Jul

    90° / 64°

    0 wet

  8. Aug

    92° / 64°

    0 wet

  9. Sep

    89° / 62°

    1 wet

  10. Oct

    82° / 56°

    2 wet

  11. Nov

    74° / 50°

    4 wet

  12. Dec

    67° / 46°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Northridge Cal State, CA, 4.8 mi away at 904 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Spiral Boulder is a bouldering area in Stoney Point Park, a city-managed park in California. It sits among a cluster of climbing spots, with Split Rock, Pyramid Rock and Lion's Head all about 0.1 mile away. The bouldering here is all on the V scale, with six routes ranging from V0- to V2. Spiral Direct is V0+, Spiral Traverse is V1 and Spiral Low Traverse is V2. Borealis is V0- and was first climbed by Owen. Spring and fall are the most comfortable times to go. Typical averages from a nearby weather station show April highs around 75°F and October highs around 82°F, while July and August average in the low 90s. The Mattingly Trail and the Santa Susana Pass Trail are both within about a mile and a half. For a change of pace, the Mayan Drive mountain biking route is about 0.3 mile away.

Routes (6)

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