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Swan Slab
Routes Sorted
L to R R to L Alpha
Aid Route 
Bay Tree Crack 
Bobcat Crack 
Claude's Delight 
Grant's Crack 
Hanging Flake 
Lena's Lieback 
Oak Tree Crack 
Oak Tree Flake 
Penelope's Problem 
Penthouse Cracks 
Pin Scar Seams 
Swan Slab Chimney 
Swan Slab Gully 
Swan Slab Squeeze 
Ugly Duckling 
Unknown Arete 
Unnamed Crack 
Unnamed Crack (the other one) 
Unnamed Face Route 
Unnamed Seam 
Unnamed Thin Crack 
West Slabs 

Oak Tree Flake 

YDS: 5.6 French: 4c Ewbanks: 14 UIAA: V British: S 4b

Type:  Trad, 1 pitch, 50'
Consensus:  YDS: 5.5 French: 4b Ewbanks: 13 UIAA: IV+ British: MS 4a [details]
Page Views: 2,307
Submitted By: M.Morley on Jul 23, 2007
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Liz leading Oak Tree Flake.
Fifi Buttress To Close! MORE INFO >>>


Begin at a large Black Oak with branches touching the cliff. Lieback wide crack to easier ground. The bolt anchor noted in the Supertopo guidebook is no more, so bring some smaller gear for an anchor, or continue up to the belay/rap tree for Grant's Crack.


Left and around the corner from Grant's Crack.


One or two large cams, plus a few extra pieces.

Photos of Oak Tree Flake Slideshow Add Photo
Jim Fienup on "Oak Tree Flake"
Jim Fienup on "Oak Tree Flake"
Oak Tree Flake
Oak Tree Flake
Lower part of Oak Tree Flake.
BETA PHOTO: Lower part of Oak Tree Flake.
Jerry, low on the route
Jerry, low on the route
Andrea climbing the route
Andrea climbing the route
Looking up most of the route.
BETA PHOTO: Looking up most of the route.
Comments on Oak Tree Flake Add Comment
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By -Ty-
From: Salt Lake City, UT
Aug 1, 2007
rating: 5.5 4b 13 IV+ MS 4a

Watch your head on the trees. Also, I found it was a difficult location to build an anchor.

By M.Morley
From: Sacramento, CA
Sep 9, 2007

Correction to the Supertopo: the bolt anchor indicated for Oak Tree Flake and Grant's Crack on Swan Slab (page 98) is gone. Instead, go ~20' higher to a small tree with webbing/rap rings.

By Christian "crisco" Burrell
From: PG, Utah
Oct 19, 2008

We went up to the tree when we discovered the bolts missing. To TR this for our group we had to belay beneath Grants crack. The slings on the tree were good, but there was a rap ring that had nearly been worn through. Luckily some kind soul left a quick-link we could use.

By Floyd Hayes
Aug 2, 2010
rating: 5.7 5a 15 V+ MVS 4b

The flake is real easy but the first move or two from the ground up the crack directly below the right side of the flake are a bit tough for 5.6. It's easier to climb to the left, then traverse right under the flake. No need to build an anchor--simply sling the tree limbs at the top of the flake. Not good for the tree, though.

By Osprey
From: ...
Sep 5, 2010

Try building an anchor from the stacked blocks at the bottom of the Bay Tree Crack.

By Adam Voss
From: Santa Barbara, CA
Nov 21, 2010

Nice moves up the flake. If you don't have a #4 it's pretty runout to the branches. Should have read MP first about the anchor. I spent a while looking for the bolts. Climbing up to Grant's Crack anchor added a few more interesting moves.

By TylerW
From: Flagstaff, AZ
Nov 22, 2010
rating: 5.5 4b 13 IV+ MS 4a

decent TR for introducing first timers to climbing

By Worster than you
From: Lafayette, CA
Mar 24, 2013
rating: 5.6 4c 14 V S 4b

Yep, like you said, bolts are gone. I didn't go up to the next tree, just built a quick anchor with no. 1 and no. 2 placements at inside corner left of old bolts. Came here right after Jamcrack, and the bottom moves are easier than that.