The Thumb Aid Climb
One of two routes at Main Wall; uses bolts and placed gear together.
- Mixed
- style
Best time to visit The Thumb Aid Climb
Best months: February–June and October–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
60° / 31°
7 wet
Feb
61° / 32°
8 wet
Mar
65° / 35°
8 wet
Apr
69° / 38°
5 wet
May
75° / 43°
3 wet
Jun
85° / 46°
1 wet
Jul
92° / 53°
1 wet
Aug
93° / 54°
1 wet
Sep
89° / 49°
2 wet
Oct
79° / 40°
3 wet
Nov
68° / 34°
5 wet
Dec
60° / 30°
7 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Henshaw Dam, CA, 14.3 mi away at 2,700 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
One of only two routes catalogued at Main Wall. This climb takes both bolts and placed gear on the same line.
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