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Cob Rock

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Aid Crack 
Brownies In The Basin 
Corn on the Cob 
East Crack 
Empor 
Empor Scary Variant 
Face Route 
Goat, The 
Hurley Direct 
Huston Crack 
Indistinction 
Ms. Fanny Le Pump 
Night Vision 
North Face Center 
North Face Left 
Northwest Corner 
Right Crack 
Thunder Road 
Unknown 
West Cracks 
West Dihedral 
West Rib 


Cob Rock


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Submitted By: Michael Komarnitsky on Jan 1, 2001
Administrators: Ben Mottinger, Leo Paik, John McNamee, Frances Fierst
Elevation: 6,650 feet
Latitude: 40.0005  Longitude: -105.3895 
Aerial photo/map | Weather
Views: 19,716 page views

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BETA PHOTO

Description 

A solid slab that will be cooler than a majority of rocks in the canyon, due to its shaded north-facing location. Top access is via a trail shortly west of the rock. There are a number of enticing trad crack routes, many moderate and excellent for beginning trad leaders. Cob has a number of classic climbs on it, put up in the 60s and 70s.

L->R

East Face
A. Scratch?, 12-, 1p, gear.
B. Leave it of Lead It?, 12, 1p, gear.
C. Racing The Sun?, 11 X, 1p, gear or TR.
D. Devil's Dream?, 9, 1p, gear.
E. Body Talk?, 9+, 1p, gear.
F. Othello?, 10, 1p, gear.

North Face
G. Ms. Fanny Le- Pump, 11, 1p, gear.
H. Indistinction, 8, 1p, gear.
I. Right Crack, 6, 1p, gear.
K. Night Vision, 10 PG-13, 2p, gear & bolts.
L. Huston Crack, 8+, 1p, 60', gear.
M. Aid Crack, 10+ R, 1p, 60', gear.
N. Face Route 11- X, 1p, 60', gear.
O. The Goat, 9, 1p, gear.
P. East Crack, 10-, 2p, gear.
Q. North Face Left, 8, 2p, 210', gear.
R. North Face Center, 7, 2p, 210', gear.
S. Empor, 7+, 2p, 210', gear.

Northwest bit
T. variation, 9 R, 2p, 210', gear.
U. Northwest Corner, 8, 2p, 200', gear.
West Face
V. Hurley Direct, 10-, 2p, gear.
W. Brownies in The Basin, 9+ X, now 9+, 1-2p, bolts & gear.
X. West Crack?, 9, 2p, gear.
Y. West Rib, 8, 2p, gear.
Z. West Dihedral, 8, 2p, gear.
AA. Upper West Face, ?
BB. Thunder Road, 12-, 1p, 70', bolts.
CC. Corn on the Cob, 10, 1p, 70', bolts.


Getting There 

About 6.6 miles up the canyon, on the south side of Boulder Canyon there's a pullout on the left side of the road beneath the rock. It's obvious. Crossing the river can be sketchy; we found it to be easiest via some rocks that are at the east edge of the pullout. Find the trail running to the right and up to the base of the rock.



Featured Route For Cob Rock
Marga on the difficult moves near the second bolt.

Thunder Road 5.12-  CO : Boulder Canyon : Cob Rock
The west face of Cob Rock is a steep gold and brown wall. Thunder Road fires up the center of this beautiful wall. Climb up to a large crack/corner on the left side of the west face. Easy fifth class. Belay here with gear. Travese right and clip the first bolt. Crank up and clip the second bolt, make a series of weird lay-a-ways and then crank on good holds to a difficult mantle. Steep climbing veers right and then straight up on good holds to th...[more]


Add Photo Photos of Cob Rock
Map of BC from Cob Rock to Boulder Falls

BETA PHOTO: Map of BC from Cob Rock to Boulder Falls

Clint locks on top of sescond pitch of North face center

Clint locks on top of sescond pitch of North face ...

Because Cob rock faces North and stays cool, the crag can be quite a mob scene on hot summer days. Photo by Tony Bubb, Y2K.

Because Cob rock faces North and stays cool, the c...

Cob Rock from the parking lot on the other side of Boulder Creek.

BETA PHOTO: Cob Rock from the parking lot on the other side of...

My wife making the traverse across the creek - she was not too pleased that I was taking pictures.

BETA PHOTO: My wife making the traverse across the creek - she...

View of Cob from Blob.<br />Photo: Dave Fiorucci

View of Cob from Blob.
Photo: Dave Fiorucci





Add Comment Comments on Cob Rock
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Comments displayed oldest to newestSkip Ahead to the Most Recent Dated Jun 23, 2007
By Darrin Stein
From: Moab, UT
Jan 8, 2002

I'm not going to comment on any one particular route. From this page, if anyone pulls the drop down for the routes, you will see all the stars listed. A GREAT crag, despite the close proximaty to the road and it being so crowded.

By Greg Kneser
Sep 30, 2002

The traverse has been taken down, but with the drought this year it's not necessary. There are _many_ safe rock hopping ways to get to Cob Rock right now (September 2002)

By James Balasalle
Jun 1, 2003

Tried to get here on 5/30/03... Didn't happen. The traverse isn't there, and the creek is raging. Wading the creek seemed pretty much un-doable, as the water looked to be at about class II-III whitewater. This was a bummer because there was NO-ONE there... wonder why.

By Shawn Shannon
From: Denver, CO
Jun 14, 2003

Any word if a traverse across the river has been set up? Also, if there isn't one is there any alternatives to reach the rock? thanks...

By Bob D'Antonio
From: Superior, CO
Jun 14, 2003

There is one set up just left of the parking area. The river is still quite high!

By Sue Rice
Aug 2, 2003

I was out here in July. Was this the traverse that the climber got pinned at the creek by a boulder?

By Ted Lanzano
Aug 14, 2003

I ran into an employee from the Department of Transportation who told me he was going to cut the rope traverse over the creek at Cob. He said the rope is attached to State property (the gaurd rail) which is against the law. I told him to wait a few days and put up a notice explaining the situation and not leave climbers stranded on the other side. He appeared to of waited because as of yesterday (8/13) the rope was still installed. In any case, he could come back and cut it and it is probably best to move the traverse back to the tree and off the gaurd rail.

By Scott Conner
From: Lyons, CO
Aug 14, 2003

The tyrolean for Cob and Sherwood Forrest are no longer needed. The creek can be safely crossed in calf deep water and it's almost possible to rock hop.

By Anonymous Coward
Sep 1, 2003

Was on the Northwest face yesterday, and it seems the big white spot in the picture where routes come together is where there is a massive 2-ton rock that is loose. I know this because I was about to set an anchor in and when I shook the TCU a little the whole damn thing moved. It's set in place well, but be aware! Cheers. brian w

By Darren O'Connor
Jun 24, 2005

I just crossed the creek on the fraying rope near Sherwood Forest and hiked down to Cob Rock. I was disturbed to find three new bolts on the face on the top pitch of Empor, near the 5.7 alternate finish. The 3rd bolt didn't have a hanger. Anyone know who put this up?

It seems rather contrived to me to put 3 bolts in at the top of a bunch of classic 5.7's and 5.8's. I happily climb the new bolted routes in the canyon, but I think it's out of place to be bolting a 20' piece of rock that you have to climb moderate routes with gear to approach. Perhaps my opinion is colored by my long time enjoyment of this, my favorite rock in the canyon.

By MarkG
From: Goretex-Vortex, CO
May 3, 2007

Used the tyrolean today (5/3/07) and it works smashingly but just barely keeps you out of the water. Recommend dragging your packs across separately to keep them dry.

  • *EDIT: Tyrolean is fixed, nice 'n high above the creek. June 2007. Thanks to whomever did this.

Does anyone know what the bolted line just right of Hurley Direct is?
The first bolt hanger is missing, then three more bolts to a sling anchor below a nice right leaning finger/hand crack.

By Tony Bubb
From: Boulder, CO
May 4, 2007

Yeah- Brownies In The Basin

It *WAS* 'Brownies in the Basin,' but someone retro-bolted it.

By Stephanovich
From: antarctica
Jun 23, 2007

Yahoo, Love Cob. All routes are quality!! One particular one,-I was wishing for more info of. Yesterday 6-22-07 w/ Pam Porskinak (sorry Philo I had to) I climbed up Hurley Direct (5.10- ?). Traversed into Empor (5.7ish-) and up the V-slot. From there, there are two bolts to a bolt stud. Face w/ small holds to a sloping dish (directly below the stud), I think this might be the crux (5.10+ or 5.11??). I might have made it harder, instead of using a stopper I had a maschine nut and "Lucky" bolt hanger, which I "placed" on the stud- gave it a traddier feel, clipped a draw and fell. LOL. Tim and Betheny whom I met, gave me enough motivation to do it on my second try, yet the hanger was in place at that point. I must try again, in the fashion of the first go. does any body know what it is?
Culp climbed the face years ago w/o the bolts in place, but veered off to the right joining the 5.7 splitter-like crack of Empor. I think that's so cool man.
That day I used the following gear for my attempt:
#0.5 WC Friend (on Hurley Direct), two shoulder length slings w/ crabiners for the old pitons (on Empor), two quick draws for the bolts (on the "unknown" face), "lucky" bolthanger + the nut for it and two biners, sling and locker for tree belay, 1 pitch from ground to belay tree (60m). Super fun day.