California · Rock climbing · Yosemite National Park

Swan Slab Boulders

Swan Slab Boulders is a bouldering area in California with 3 routes.

Photo: mlcastle, CC BY-SA 2.0 (via Flickr)

3 routes

Bouldering

Is Swan Slab Boulders open right now?

No closures listed

The National Park Service lists no closures for Yosemite National Park.

As of Oct 24, 6:30 pm PDT · Source: NPS · Yosemite National Park. Agencies don't list every closure — check before you go.

Best time to visit Swan Slab Boulders

Best months: March–June and September–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.

Jan
48° / 29°
9 wet
Feb
51° / 30°
9 wet
Mar
57° / 33°
10 wet
Apr
63° / 38°
8 wet
May
70° / 45°
6 wet
Jun
80° / 51°
3 wet
Jul
89° / 57°
1 wet
Aug
89° / 57°
1 wet
Sep
83° / 51°
2 wet
Oct
71° / 41°
3 wet
Nov
56° / 32°
6 wet
Dec
46° / 28°
8 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Yosemite Park Hq, CA, 0.8 mi away at 4,018 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Swan Slab Boulders is a bouldering area in Yosemite National Park, California, managed by the National Park Service. It sits among a cluster of climbing and hiking destinations, with Bridwell Boulder and Sloth Boulder each about 0.1 mile away and Yosemite Falls Trail about the same distance off. A fee is charged for access. The boulders are small in number, with three routes listed as V-easy boulders. They are all unnamed in the route records, so they are best approached as a simple bouldering stop rather than a destination with a set of named problems. For comfortable weather, late spring and early fall are the sweet spots. Typical averages from a nearby weather station show May highs around 70°F and October highs around 71°F, while July and August average highs near 89°F. Lower Pines Campground and North Pines Campground are both about 1.9 miles away for an overnight stay.