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Routes in Clamshell Cave

5.8 Cube Crack T,TR 5.8- 5b 16 VI- 14 VS 4c
Clamshell Crack T 5.7 5a 15 V+ 13 MVS 4b
Eagle's Prey T,S 5.9 5c 17 VI 17 HVS 5a
Eagle's Way S 5.10c 6b 20 VII 20 E2 5b
Forty-Four Fifty T,S 5.9 5c 17 VI 17 HVS 5a
GRTC S 5.10b 6a+ 19 VII- 19 E2 5b
Keep Clam T 5.8 5b 16 VI- 15 HVS 4c
Noisy Oyster T 5.7 5a 15 V+ 13 MVS 4b
Shrimp Salad T 5.7+ 5a 15 V+ 13 MVS 4b
Stolen Thunder S 5.10c 6b 20 VII 20 E2 5b
Elevation: 1,942 ft
GPS: 47.545, -120.729 Google Map · Climbing Map
Page Views: 9,664 total, 71/month
Shared By: ScottH on Oct 5, 2006
Admins: Scott Coldiron, Nate Ball, Jon Nelson, Micah Klesick

Description

Clamshell Cave hosts a variety of moderate climbs, including some enjoyable moderate cracks. Most of the lines are either trad lines or require trad gear. It is easily possible to toprope most of the lines by scrambling around the right side of the crag. Most routes end at bolted anchors. The hangers on the anchors seem to come and go, a definite nuisance since options for gear at the top of the crag aren't great. Be prepared to use the anchor on a neighboring route.
Seasonal Raptor Closures Details

Getting There

Park 5.4 miles up Icicle creek canyon and look for a trail on the north side of the road. A well travelled and sometimes braided trail reaches the base of the crag in 10-15 minutes.

10 Total Climbs

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Classic Climbing Routes at Clamshell Cave

Mountain Project's determination of the classic, most popular, highest rated climbing routes in this area.
5.7 5a 15 V+ 13 MVS 4b
Noisy Oyster
Trad
5.7 5a 15 V+ 13 MVS 4b
Clamshell Crack
Trad
5.8 5b 16 VI- 15 HVS 4c
Keep Clam
Trad
5.9 5c 17 VI 17 HVS 5a
Forty-Four Fifty
Trad, Sport
5.10b 6a+ 19 VII- 19 E2 5b
GRTC
Sport
5.10c 6b 20 VII 20 E2 5b
Stolen Thunder
Sport
Route Name Location Star Rating Difficulty Date
Noisy Oyster 5.7 5a 15 V+ 13 MVS 4b Trad
Clamshell Crack 5.7 5a 15 V+ 13 MVS 4b Trad
Keep Clam 5.8 5b 16 VI- 15 HVS 4c Trad
Forty-Four Fifty 5.9 5c 17 VI 17 HVS 5a Trad, Sport
GRTC 5.10b 6a+ 19 VII- 19 E2 5b Sport
Stolen Thunder 5.10c 6b 20 VII 20 E2 5b Sport
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James Pierson
Bellingham, Washington
James Pierson   Bellingham, Washington
Does anyone know the name of the small crag below Clamshell Cave? You walk around the right of it then up around the back of it before making that final turn up to Clamshell.

There are a few bolted anchors at the top of the crag with some short crack lines on the left and few longer lines to the middle-right. There is a big pine tree at the base on the middle-right (yeah, I know - big pine tree at the base of the crag, that'll really narrow things down). May 31, 2017
ScottH  
The anchors on this crag have hangers, but (strangely) no quicklinks for lowering. I have seen ropes get stuck when people attempt to pull them after rappelling, necessitating a hike around to the top of the crag. If anyone is so inclined, adding quicklinks to the anchors would be a nice improvement to the area. Jun 21, 2007

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