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Elevation: 3,693 ft
GPS: 45.27641, -121.73401
Google Map · Climbing Area Map
Page Views: 27,392 total · 399/month
Shared By: John Barkhausen on Jul 17, 2018
Admins: Roberta Zouain, Micah Klesick, Nate Ball

Description Suggest change

Trillium Lake Crag, also known as Mosquito Butte, is a small crag just around to the north side of Trillium Lake. At about 30' high, it doesn't hold the longest or most epic routes, or even the most aesthetically pleasing routes, but it does provide some fun, moderate, mostly sport climbing in a beautiful setting.

You can access most of the anchors from above, but beware of getting down to some of the lower ones. There are some trees, and even an extra bolt, to create tethers to access some of the lower anchors to set up top ropes.

Getting There Suggest change

Turn off of hwy 26 in between Government Camp and the spit of 26/35, onto forest road 2656. There will be signs for Trillium Lake Campground and Day Use areas. Drive to the end of the road, where you will reach the Day Use Parking Area. Hike on the Trillium Lake Trail North, around the lake. Near the Northeast corner of the lake, when you're near the marshy area, look for a climber's trail to your right. Take that for 5-10 minutes and you will see the crag.

22 Total Climbs

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Location: Trillium Lake Crag (Mosquito Butte) Change
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Classic Climbing Routes at Trillium Lake Crag (Mosquito Butte)

Mountain Project's determination of the classic, most popular, highest rated climbing routes in this area.
5.7 5a 15 V+ 13 MVS 4b
 17
Unnamed 5.7
Sport, TR
5.8 5b 16 VI- 15 HVS 4c
 5
Unnamed
Trad
5.8 5b 16 VI- 15 HVS 4c
 11
Unnamed 5.8 Overhang
Sport, TR
5.8 5b 16 VI- 15 HVS 4c
 4
Another Unnamed Route
Sport
5.8 5b 16 VI- 15 HVS 4c
 13
Unknown 5.8
Sport
5.9- 5c 17 VI 16 HVS 4c
 6
Unnamed 5.9
Sport, TR
5.9 5c 17 VI 17 HVS 5a
 4
Unnamed
Trad
5.10- 6a 18 VI+ 18 E1 5a
 4
Rock Horn
Trad
5.10b/c 6b 20 VII 20 E2 5b
 12
Pump up the Slab
Sport
5.10+ 6b+ 21 VII+ 20 E3 5b
 5
Unnamed 5.10+ Arête
Sport, TR
5.11a 6c 22 VII+ 22 E3 5c
 5
The Actual 5.11a
Sport
5.11c 6c+ 24 VIII- 24 E4 6a
 5
Unnamed 5.11
Sport, TR
Route Name Location Star Rating Difficulty Date
Unnamed 5.7 Section 2
 17
5.7 5a 15 V+ 13 MVS 4b Sport, TR
Unnamed Section 4
 5
5.8 5b 16 VI- 15 HVS 4c Trad
Unnamed 5.8 Overhang Section 2
 11
5.8 5b 16 VI- 15 HVS 4c Sport, TR
Another Unnamed Route Section 2
 4
5.8 5b 16 VI- 15 HVS 4c Sport
Unknown 5.8 Section 3
 13
5.8 5b 16 VI- 15 HVS 4c Sport
Unnamed 5.9 Section 1
 6
5.9- 5c 17 VI 16 HVS 4c Sport, TR
Unnamed Section 4
 4
5.9 5c 17 VI 17 HVS 5a Trad
Rock Horn Section 3
 4
5.10- 6a 18 VI+ 18 E1 5a Trad
Pump up the Slab Section 3
 12
5.10b/c 6b 20 VII 20 E2 5b Sport
Unnamed 5.10+ Arête Section 1
 5
5.10+ 6b+ 21 VII+ 20 E3 5b Sport, TR
The Actual 5.11a Section 3
 5
5.11a 6c 22 VII+ 22 E3 5c Sport
Unnamed 5.11 Section 3
 5
5.11c 6c+ 24 VIII- 24 E4 6a Sport, TR
More Classic Climbs in Trillium Lake Crag (Mosquito Butte) »

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