Wildcat Mountaineering
Rock Climbing business nearby (~19 mi away) — hasn't claimed their Roamze page yet
Colorado · Rock climbing · Estes Park
Unknown Chasm
Near the lower end of The Bookend's grade range among 27 catalogued routes.
- 5.7
- grade
- Trad Gear
- style
Is Unknown Chasm open right now?
No closures listed
The National Park Service lists no closures for Rocky Mountain National Park.
As of · Source: NPS · Rocky Mountain National Park. Agencies don't list every closure — check before you go.
Best time to visit Unknown Chasm
Best months: May–June and 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
37° / 16°
7 wet
Feb
38° / 16°
8 wet
Mar
45° / 21°
9 wet
Apr
52° / 26°
10 wet
May
61° / 35°
12 wet
Jun
74° / 43°
10 wet
Jul
80° / 48°
13 wet
Aug
78° / 46°
13 wet
Sep
70° / 39°
9 wet
Oct
57° / 30°
7 wet
Nov
44° / 23°
6 wet
Dec
36° / 16°
7 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Estes Park 3 Sse, CO, 4.1 mi away at 7,812 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.
One of 27 routes catalogued at The Bookend, this climb sits near the lower end of the crag's 5.6–5.12d range.
Photo of the crag
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Local businesses nearby
Outfitters and businesses near Estes Park. They haven’t set up their Roamze page yet.
View operator
Movement Gyms
Rock Climbing business nearby (~30 mi away) — hasn't claimed their Roamze page yet
Boulder Rock Club
Rock Climbing business nearby (~30 mi away) — hasn't claimed their Roamze page yet
