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Olmsted Canyon Right
Routes Sorted
L to R R to L Alpha
Age of Darkness T 
Cash Register T 
Easy Money T,TR 
Enemy Within T 
Grease Monkey T 
Hot Box T,TR 
Ivory Tower, Center T 
Ivory Tower, Left T 
Lock of Ages T 
Lord Caffeine T 
Miss Apprehension T 
Missle Toe T,TR 
Short Change T 
Talk Dirty to Me T 
Techno-Pig T 
Thrill Is Gone, The T 
Tideline T 
Tits On A Bull T,TR 

Enemy Within 

YDS: 5.10- French: 6a Ewbanks: 18 UIAA: VI+ ZA: 18 British: E1 5a

Type:  Trad, 1 pitch, 50'
Consensus:  YDS: 5.10- French: 6a Ewbanks: 18 UIAA: VI+ ZA: 18 British: E1 5a [details]
FA: Bruce Morris, Mike Hernandez, 7/86
Season: Summer
Page Views: 1,027
Submitted By: David Aguasca! on Aug 5, 2010

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BETA PHOTO: Looking straight up the Enemy Within OW

Closures for Peregrine Falcon Protection MORE INFO >>>


Great OW climbing on slightly grainy rock. The crux in my opinion is where the cheater flake on the right wall ends and the crack widens momentarily. Once you pull through this (stacking helps) the climbing is sustained but secure.

The finish is an easier wide squeeze.


This left facing corner can be seen from Ivory Tower Center. It is approximately 100 feet right of the Ivory Tower. To get off, you can walk climbers left about 40 feet to a rap station.


If you want to sew it up, bring a 6 C4, 2 #5 C4s, and 2 #4 C4s.

Two bolt anchor.

Photos of Enemy Within Slideshow Add Photo
Rock Climbing Photo: valley giants at work
valley giants at work
Rock Climbing Photo: FA of "Enemy Within"
FA of "Enemy Within"
Rock Climbing Photo: Sarah Land getting psyched to battle the Enemy Wit...
BETA PHOTO: Sarah Land getting psyched to battle the Enemy Wit...
Rock Climbing Photo: Allison leading Enemy Within.  Aug 2015.
Allison leading Enemy Within. Aug 2015.
Rock Climbing Photo: "Enemy Within" (5.10b OW)
"Enemy Within" (5.10b OW)

Comments on Enemy Within Add Comment
Show which comments
By benkraft
From: San Francisco, California
Jul 31, 2014
rating: 5.10- 6a 18 VI+ 18 E1 5a

Inching up Enemy Within

By Bruce Morris
From: Belmont, CA
May 28, 2015

Here's a video by Ed Hartoni of Gary Carpenter leading "Enemy Within":

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