Manhattan Project
One of the steeper challenges at The Roof Area.
- 5.12d
- grade
- Sport Bolted
- style
Is Manhattan Project open right now?
Alert in the area
The Forest Service lists an alert for Shoshone National Forest.
Morrison Jeep Trail
Agency alert covering Shoshone National Forest · USFS · Shoshone National Forest
As of · Source: USFS · Shoshone National Forest. Agencies don't list every closure — check before you go.
Best time to visit Manhattan Project
Best months: June–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
30° / 1°
Feb
31° / 7°
Mar
38° / 13°
Apr
46° / 21°
May
57° / 29°
Jun
69° / 37°
Jul
78° / 43°
Aug
76° / 42°
Sep
67° / 33°
Oct
52° / 23°
Nov
37° / 12°
Dec
29° / 5°
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Atlantic City, WY, 17.6 mi away at 7,821 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
One of the steeper challenges at The Roof Area, where 29 routes span from 5.6 to 5.13a.
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