California · Rock climbing · Calistoga

Iron Curtain

Iron Curtain in California has 12 climbing routes across 8 grades, offering sport and trad styles.

12 routes
5.8 – 5.12a
Sport · Trad

Best time to visit Iron Curtain

Best months: February–November. 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

    54° / 39°

    13 wet

  2. Feb

    56° / 40°

    11 wet

  3. Mar

    60° / 41°

    11 wet

  4. Apr

    66° / 42°

    8 wet

  5. May

    73° / 47°

    4 wet

  6. Jun

    80° / 51°

    1 wet

  7. Jul

    85° / 54°

    0 wet

  8. Aug

    84° / 54°

    0 wet

  9. Sep

    81° / 53°

    1 wet

  10. Oct

    72° / 50°

    4 wet

  11. Nov

    60° / 43°

    9 wet

  12. Dec

    53° / 39°

    13 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Angwin Pacific Union College, CA, 9.1 mi away at 1,715 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Iron Curtain is a climbing area in California, about 4 miles from the town of Woodleaf. It sits among a cluster of other named climbing areas and trails, so it works well as a base for a day of climbing or a longer outing in the surrounding country. Late spring and early fall are the most comfortable times to visit. Typical averages from a nearby weather station in Angwin run to highs around 73°F in May and 72°F in October, with only a handful of wet days in each month. Midsummer is hotter, with July highs near 85°F. The Shock Block and Wine Wall are both climbing areas about 0.1 mile away, and Table Rock is another climbing area at a similar distance. For a walk, the Palisades Trail is about 0.2 mile off, and the Climbers Approach Trail is about 0.3 mile away.

Routes (12)

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