Washington · Rock climbing · Snoqualmie Pass

Mothership Boulder

Washington bouldering area with varied problems for multiple skill levels.

Is Mothership Boulder open right now?

Closure in the area

There's a closure order in Mt. Baker-Snoqualmie National Forest. It doesn't name Mothership Boulder, so check the source for the area it covers (3 listed).

As of · Source: USFS · Mt. Baker-Snoqualmie National Forest. Agencies don't list every closure — check before you go.

Best time to visit Mothership Boulder

Best months: July–September. 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

    39° / 32°

    19 wet · 5 snow

  2. Feb

    42° / 32°

    17 wet · 4 snow

  3. Mar

    46° / 33°

    20 wet · 4 snow

  4. Apr

    51° / 36°

    19 wet · 1 snow

  5. May

    59° / 42°

    17 wet

  6. Jun

    63° / 46°

    15 wet

  7. Jul

    70° / 51°

    9 wet

  8. Aug

    71° / 52°

    8 wet

  9. Sep

    64° / 47°

    12 wet

  10. Oct

    54° / 41°

    17 wet

  11. Nov

    44° / 36°

    20 wet · 2 snow

  12. Dec

    39° / 31°

    20 wet · 5 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Cedar Lake, WA, 14 mi away at 1,560 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Closures we've recorded since August 2026

  • Campfire Ban in Effect Forest-wide

    Mt. Baker-Snoqualmie National Forest · Order dated July 21, 2026; seen Aug 23, 2026 → lifted Sep 15, 2026 · Forest Service

Mothership Boulder is a Washington bouldering destination offering a mix of problems across various grades. The area provides accessible climbing on natural stone, making it suitable for boulderers looking to develop technique and strength in a scenic outdoor setting.

Routes

No routes catalogued here yet

We have this crag's location and access details, but not its individual climbs. Routes appear here as our sources add them.

The map shows other climbing nearby, or browse more crags.

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Map and trail data © OpenStreetMap contributors