Nervous System
Upper-difficulty climb in the Left Brain Buttress sector of The Brothers' Lookout 2nd Tier.
- V5-6
- grade
- Bouldering Pads
- style
Best time to visit Nervous System
Best months: May–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.
Jan
44° / 12°
5 wet
Feb
44° / 13°
6 wet
Mar
51° / 21°
7 wet
Apr
56° / 27°
8 wet
May
64° / 36°
10 wet
Jun
76° / 43°
10 wet
Jul
81° / 49°
12 wet
Aug
79° / 47°
12 wet
Sep
73° / 40°
8 wet
Oct
61° / 29°
6 wet
Nov
51° / 20°
5 wet
Dec
44° / 13°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Evergreen, CO, 1.9 mi away at 6,985 ft. The station sits about 500 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Located in the Left Brain Buttress sector of The Brothers' Lookout 2nd Tier, this climb represents the upper end of the crag's difficulty range, with only 11 routes catalogued at this grade or harder across the entire area.
Photo of the crag

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