Mushroom Rock
Mushroom Rock is a climbing area in Idaho with 5 sport routes.
Photo: cifraser1, CC BY 2.0 (via Flickr)- 5 routes
- 5.8 – 5.12c
- Sport
Is Mushroom Rock open right now?
No closures listed
The National Park Service lists no closures for City of Rocks National Reserve.
As of · Source: NPS · City of Rocks National Reserve. Agencies don't list every closure — check before you go.
Best time to visit Mushroom Rock
Best months: April–June and August–October. 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
35° / 16°
8 wet
Feb
39° / 19°
7 wet
Mar
48° / 27°
6 wet
Apr
55° / 33°
7 wet
May
65° / 41°
9 wet
Jun
75° / 50°
6 wet
Jul
86° / 59°
5 wet
Aug
85° / 57°
6 wet
Sep
74° / 48°
5 wet
Oct
60° / 35°
5 wet
Nov
45° / 24°
6 wet
Dec
35° / 17°
8 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Rosette, UT, 24 mi away at 5,685 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Mushroom Rock is a sport climbing area inside City of Rocks National Reserve in Idaho, managed by the National Park Service. It sits among several other climbing spots and trails, including Lost Arrow Spire and Box Top Trail, all within a short distance. The climbing here is sport-style, with five routes ranging from 5.8 to 5.12c. North Face Left is the easiest at 5.8, and Sea Biscuit is the hardest at 5.12c. The median grade is 5.11b. The most comfortable months for a visit are typically June and September, when a nearby weather station in Rosette, Utah, records average highs of about 75°F and 74°F. Winters there are cold, with typical January highs around 35°F. Nearby, Lost Arrow Spire and The Boxtop are both climbing areas within a third of a mile. The Box Top Trail and North Fork Circle Creek are hiking options about 0.4 miles away. Independence Lakes Campground is roughly 9 miles off.
Routes (5)
Facts about this crag
Keep exploring — more climbs worth the drive
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