REI Community
Uncertainty Principle Area
Routes Sorted
L to R R to L Alpha
10a on the Outside TR 
Bobby Brown Arete T 
Boulder with 3 Cracks 
Driving South T,TR 
Eric's Crack T,TR 
Fly by Night TR 
Full Circle 
Hellrazor TR 
Joker, The TR 
Kurtains For Certain TR 
Lemon Chiffon T 
Misspent Youth 
Motor City 
Mr. Sniod TR 
Painted Boulders, The TR 
Pickpocket TR 
Rock The Boat S 
RURP right TR 
Silk Banana T 
Titanic Boulder T 
Uncertainty Principle TR 
Unsorted Routes:

Uncertainty Principle 

YDS: 5.11c French: 6c+ Ewbanks: 24 UIAA: VIII- ZA: 24 British: E4 6a

Type:  TR, 35'
Original:  YDS: 5.11c French: 6c+ Ewbanks: 24 UIAA: VIII- ZA: 24 British: E4 6a [details]
FA: Bill Ramsey
Page Views: 7,117
Submitted By: Adam Stackhouse on Feb 12, 2006

You & This Route  |  Other Opinions (40)
Your todo list:
Your stars:
Your rating: -none- [change]
Your ticklist: [add new tick]
Your opinion of this PAGE:    [0 people like this page.]
Stephen Quale on Uncertainty Principle

Current San Diego County Advisories MORE INFO >>>


Overseeing the landscape is the patriarch of Mt. Woodson, The Uncertainty Principle. Some despise it while some revere it, but all respect it! From the gate, it is located about a half mile up the road, capturing the interest of all who pass by it. Continue up the road past the roadside route Rock The Boat and take a left turn trail to easily access. The route involves stepping off a boulder on the right side climbing straight up to the top. The crux is getting past the initial moves.
Highly recommended.


TR, bolts. Set-up is via a two bolt lead up the north face (low-angled face in the picture).

Photos of Uncertainty Principle Slideshow Add Photo
Rock Climbing Photo: Another view of Uncertainty Principle
Another view of Uncertainty Principle
Rock Climbing Photo: Cranking hard on Uncertainty Principle. Photo by R...
Cranking hard on Uncertainty Principle. Photo by R...
Rock Climbing Photo: The "Principle" (5.11c)
BETA PHOTO: The "Principle" (5.11c)

Comments on Uncertainty Principle Add Comment
Show which comments
By Adam Stackhouse
Feb 12, 2006

At some point (maybe more than once) this route has been bolted for a lead. This was never deemed appropriate, and was always cleaned of such hardware. There is one old bolt left of U.P. which remains.
By Adam Stackhouse
Mar 22, 2006

This route has seen a solo by climber Chris Knuth.
By Scotty Nelson
From: Boulder
Sep 28, 2006

The TR access route actually has 2 bolts. Quickest way is to yard up on the bolt to get over the lip. 1 more bolt protects the face to the top. You can lower back down and clean it off, to save the trouble of your follower coming up.
By G.McCay
From: Galloway, NJ
Apr 3, 2007
rating: 5.11c 6c+ 24 VIII- 24 E4 6a

That "yard up" start actually goes at 5.10b and the face at 5.6
By G.McCay
From: Galloway, NJ
Jul 4, 2007
rating: 5.11c 6c+ 24 VIII- 24 E4 6a

Word had it "back in the day" that that "remaining bolt" was placed to aid in a hooking ascent of the entire face which started underneath the bottom apex that rests on the grounded stone.
"Troy" and "Marty", out of Ramona, did a good job in bolting Uncertainty Principle in the late 80's, early 90's?. Too bad it was taken down, IMOHO!
By Christian "crisco" Burrell
From: PG, Utah
Mar 26, 2009

I can't imagine anyone not liking this sucker! One of the best climbs of it's grade and TR only anywhere. For me it is in the top 5 best climbs in the San Diego area for sure!
By Matt Michael
From: Oceanside, CA
Apr 18, 2013
rating: 5.11c 6c+ 24 VIII- 24 E4 6a

Incredible climb! I'll keep coming back for more!
By Benjamin Quinones
Jul 9, 2014
rating: 5.11c 6c+ 24 VIII- 24 E4 6a

When comparing this to Eric's Face 11b and Seminar Wall 11+ I am in awe of the difference between a letter grade and a + sign lol.

Mountain Project

The Definitive Climbing Resource

MTB Project

Next Generation MTB Trail Maps

Powder Project

Backcountry Ski Maps & Secret Stashes
FREE Stickers · Gyms · People · RSS · School of Rock · Contact · About