REI Community

Select Area...
Alamo Ridge 
Alamo Rock 
Amphitheater's Backside 
Beer Barrel Boulder 
Brown Glass Wall 
Bulging Wall 
Candel Area, The 
Capstan, The 
Cloud Shadow 
Cookie Jar 
Crown Rock 
Cryptic Boulder 
Dark Side, The 
Distant Dancer Pinnacle 
Face Wall 
First Overhang 
Flagstaff Amphitheatre, The 
Forgotten Ridge 
Fraggle Rocks 
Golf Club Boulder 
Great Escape Boulder, The 
High Boulder 
Hobo Cave 
Hueco Overhang Ridge 
King Conquerer 
Little Flatiron 
Loose Flake Spire 
Miscellaneous Valley 
Monkey Traverse 
Moon Rock 
Nook's Rock 
North Rocks 
Notlim Boulder 
One Arms Rocks 
Overhang Wall 
Panorama Rock 
Pebble Boulder 
Pinnacle Colada 
Pratt's Rock aka Pratt's Overhang 
Pumpkin Rock 
Rear-End Rock 
Red Wall 
Rib Boulder 
Road Sign Rock 
Shark's Rock 
Three of a Kind Wall 
Tombstone Spire 
Trail Side Wall aka Plain View Ridge 
Tree Slab 
Tutorial Rock 
Umbrella Tree 
Upper Y Traverse 

Flagstaff Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 6,313'
Location: 40.0014, -105.296 View Map  Incorrect?
Page Views: 222,855
Administrators: Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Kristine Hoffman (sitewide)
Submitted By: Patrick Vernon on Jan 1, 2001
You & This Area
Best climbs for YOU in this area
Your opinion of this PAGE:    [2 people like this page.]
Jim Holloway bouldering on Flagstaff.

Seasonal Raptor Closures MORE INFO >>>


Flagstaff Mountain is the local bouldering area. This place has quite a history, and despite the fact that it is no Hueco Tanks, there are many historical and classic "moderate" problems. Flagstaff Mountain is a unique area in that the bouldering does not involve pushing yourself on the latest V9, but attempting moderate and historical problems that are sometimes a little scary and sandbagged. There are few beginner problems, and not a whole lot of world class problems, but tons to pander to the intermediate climber. There is quite a lot of climbing at Flagstaff. There are the central popular areas like the Monkey Traverse, Beer Barrel, Red Wall, Capstan, and Cloud Shadow areas, but also many outlying areas that give some relief from the afterwork crowds, these are the Candle area, Pumpkin Rock, and Upper area. Climbing at Flag has several prerequisites. The climbing tends to be powerful, and quite bold sometimes. The rock will quickly tear up your fingers because of its sandpaper consistency, yet feel greasy at the same time. I have always found the place particularly conductive to circuits, starting at the Upper area and working down to Pumpkin Rock, one can do around 100 problems in the V0-V5 range. One can conduct innumerable ciruits from these problems. Some good problems at Flag include Cloud Shadow Traverse (V2-V6), Hagan's Wall (V5), Consideration (V3), Monkey Traverse (V3, greasy and often too crowded), Pratts Mantle (V2), south arete of Beer Barrel (V0), Polling Pebble (V5), Tree Slab Traverse (V1), right side of Redwall (V4 very height dependant), King Conquerer (V2 scary!). Harder problems (which I have not done but are obviously classic), Just Right (V7), Undercling Traverse (V9), Hollow's Way (V8), Mongolian Cosmonaut (V8), Over Yourself (V10), Ooze Pig (V7), Trice (fifth class, I believe it has still never been repeated since holloway did it in the '70s, and not for lack of trying).

Getting There 

Take Baseline Road west, go up the hill trying to avoid the flashy bikers. There are several places to park. The Capstan is a 30' spire in the middle of a hairpin turn, one can park here or continue on to the first lot on the left after the Capstan, this will take you to the Monkey Traverse area or across the road to Red Wall. Another thing to mention is that Flag is within reasonable walking distance from CU, it is about 1.5 miles away from campus, yet I have made this walk innumerable times, it takes about a half hour and is highly enjoyable.


Please consider minimizing your impact when enjoying the area. There are already significant signs of erosion, plant trampling, etc. There have already been projects begun to repair the impacts with revegetation and soil restoration in the area. Remember that pads do have a significant impact on the flora. Do your best to ensure future access to this wonderful area!

Climbing Season

Weather station 1.9 miles from here

261 Total Climbing Routes

['4 Stars',12],['3 Stars',108],['2 Stars',108],['1 Star',29],['Bomb',3]

Classic Climbing Routes in Flagstaff

Mountain Project's determination of the classic, most popular, highest rated climbing routes for Flagstaff:
South Face   V0 4     Boulder, 12'   Beer Barrel Boulder
Classic Line   V0 4 PG13     Boulder, 20'   Tree Slab
Southwest Prow   V0 4     Boulder   Beer Barrel Boulder
Slab Traverse   V1 5     Boulder, 10'   Tree Slab
Overhanging Hand Traverse   V1 5     Boulder, 20'   The Flagstaff Amphitheatre
Y-Right   V1 5 R     Boulder, 20'   Upper Y Traverse
Big Overhang   V2 5+     Boulder, 15'   Overhang Wall
Pratt's Mantle   V2+ 5+     Boulder, 10'   Pratt's Rock aka Pratt's Ov...
Pratt's Overhang   V3 6A     Boulder, 10'   Pratt's Rock aka Pratt's Ov...
King Conqueror   V3 6A R     Boulder, 20'   King Conquerer
Upper Y Traverse   V3+ 6A+     Boulder, 40'   Upper Y Traverse
Center Left   V4 6B     Boulder   Red Wall
The Monkey Traverse   V4 6B     Boulder, 10'   Monkey Traverse
The Consideration   V4 6B     Boulder   Cloud Shadow
Cloud Shadow Traverse   V4+ 6B+     Boulder   Cloud Shadow
Face Out   V5 6C     Boulder, 10'   King Conquerer
Eric Varney Direct   V5 6C     Boulder   Red Wall
Hagan's Wall   V5 6C     Boulder   Cloud Shadow
First Overhang   V5-6 6C+     Boulder, 10'   First Overhang
Just Right   V7 7A+     Boulder   The Capstan
Browse More Rock Climbing Classics in Flagstaff

Featured Route For Flagstaff
Rock Climbing Photo: Mike B on Sailor's Delight.  Photo by Mitch Harris...

Sailor's Delight V1 5 Colorado : Boulder : ... : Cloud Shadow
Scramble up the slab to some chalked up jugs and make a few committing moves over the roof. Mantle up and over using some good smaller holds....[more]   Browse More Classics in Colorado

Photos of Flagstaff Slideshow Add Photo
Rock Climbing Photo: Rob " CAT" Candelaria bouldering on Flag...
Rob " CAT" Candelaria bouldering on Flag...
Rock Climbing Photo: Anne Carrier, warming up on easy stuff...1981.
Anne Carrier, warming up on easy stuff...1981.
Rock Climbing Photo: Anne Carrier bouldering on Flagstaff, 1981.
Anne Carrier bouldering on Flagstaff, 1981.
Rock Climbing Photo: Area shot.
Area shot.
Rock Climbing Photo: Bouldering near Monkey Traverse in Boulder, CO.
Bouldering near Monkey Traverse in Boulder, CO.
Rock Climbing Photo: Luke Childers on Hollow Way's Way.
Luke Childers on Hollow Way's Way.
Rock Climbing Photo: Bouldering on Flagstaff, photo: Bob Horan Collecti...
Bouldering on Flagstaff, photo: Bob Horan Collecti...
Rock Climbing Photo: One of the more popular bouldering areas, with a c...
One of the more popular bouldering areas, with a c...

Comments on Flagstaff Add Comment
Show which comments
Comments displayed oldest to newestSkip Ahead to the Most Recent Dated Jun 9, 2017
Sep 10, 2001
Flagstaff is an awesome place to take beginners. Lots of good topropes and some good rappeling! and the best part is most of it is a short two minute walk from the road.
By Dave McAllister
Oct 1, 2001
Not much can be said concerning the wonderful bouldering at Flagstaff. Both the history and profundity of rock on the mountain is overwhelming. But here's the deal - it's filthy. I know damn well it isn't only climbers (as a matter of fact it's mostly the climbers making any concerted effort to keep the place looking snazzy), but let's step up to the plate and pretty the place up. If we all brought one Safeway or "whatever" bag every time we travelled to the crags, and tried to fill it, think of the improvement. It takes minimal time and minimal effort. Anyway, love the place, love the site.
By JVonD
From: Longmont, CO
Jan 9, 2002
I don't think Flagstaff is for beginners. Very sharp grit will shread your hands. You must be able to Boulder in the mid to upper V scale or you will be frustrated on many sandbagged ratings. Great place to go though, but too many gapers. Beginners should look at Mt. Sanitas. Problems shouldn't tear your hands as much and lots of hot babes chillin.
By Hayden Yurkanis
Mar 2, 2002
I have had an unbelievable amount of luck hitch-hiking up to flagstaff from baseline rd...this is awesome if you don't have a car, and it's the hikers and climbers that mostly pick up folks---thank yall
By Unassigned User
Jan 16, 2003
Pretty sweet bouldering but it can tear your hands apart.
By Anonymous Coward
Jul 27, 2003
OHHHHHH...mommy, my hands won't quit hurting. The rock is all sharp and hurty...sob, ohh, boo, hoo. If I would have just climbed at the BRC my hands wouldn't hurt so bad. Hope none of you whiners ever want to come out to Yosemite and climb long cracks, because you might drown the party that was about to pass you with your hurty hand tears. Come on grow a pair and enjoy the great bouldering on Flag without all the moans. Props to the clean up dude, Flag needs it!!
By Anonymous Coward
May 14, 2004
Does anyone know anything about the boulder just above the parking area on the right after the main monkey traverse parking area? There was some chalk on some up problems, but there is also quite a good traverse from right to left . Just wondering if anyone has done it before, I'm sure someone has.
By Chip Phillips
From: Broomfield, CO
May 14, 2004
Well AC, I will actually admit to doing umpteen silly little vertical problems on it as well as the right to left traverse in 1999. As you know, plenty of people have probably fooled around on it through the years, although it has never been included or mentioned in any guides. The problems are too short to be of interest to most boulderers ... nevertheless, it is one of the nicer boulders for full-on beginners; ie: nice landings, short falls, pad not required, etc.

Here's a link to the miniguide for this boulder:
By Anonymous Coward
May 15, 2004
Thankf for the beta Chip! Also some additional comments: What is the VB rating? I don't believe I've seen it before. Also, the traverse on tutorial rock is probably still V4/V5 without the big hold.
By Chip Phillips
From: Broomfield, CO
May 15, 2004
You bet. The VB rating is common at California areas and in RockFax bouldering guides. It usually equates to 5.8/5.9 boulder problems.
By Chip Phillips
From: Broomfield, CO
May 19, 2004
Well AC, I revisited Tutorial Rock when you suggested it was still V4/5 without the huge handlebar rail. While I will agree that the high traverse riding the lip could fairly be graded V4 or and deserving of a *, the low traverse dropping down from the slopers just past the two pebbles to what is left of the rail, continuing left into the start for Layback Lesson and then up, is quite a bit harder and less enjoyable on crumbly sharp rock. Its too bad the handlebar rail went bye bye. It was a truly awesome finish.
By Anonymous Coward
May 21, 2004
V6 then I guess. Heel hooking eases the weight on the arms quite a bit.
By Anonymous Coward
May 21, 2004
I guess I was just psyched to find something "new" up there. New to me that is.
By Dave Jackson
Mar 3, 2006
Flagstaff is a great place to find "new" problems, especially if you have been bouldering for a while. Now I don't mean FA's, those are few and far between. I am talking about walking that extra little bit to the boulder you keep seeing just off the road, down the hill, or across the valley. Get off the beaten path, walking on hard surfaces of course, and explore! Usually it doesn't take too long to find something up on Flagstaff that will intrigue you for weeks. The best part is you tell your buddies about your latest project and they've never heard of it, or they've always wondered about that boulder and just never had the time to explore. The rock is gritty, but suck it up and after a couple of days you won't notice.

By DeAnn Masin
Jul 9, 2007
Where are the top ropes on Flagstaff? I am taking my young neices climbing and I can't find info on website exactly where they are. Thanks.
By BoulderDiaries
From: Boulder, CO
Mar 10, 2008
I'm new to the area and just starting to get aquainted with the local spots. Does anyone know what the south arete of the North Boulders go at? The boulder I am referring too is the closest to the Red Wall, there is an obvious sit start on two underclings to some pinches and slopers. Name? Grade?
By Caleb Phillips
From: Boulder, CO
Apr 24, 2008
I just wanted to point out this awesome website for Flagstaff beta (by Chip Phillips):

It's linked to on a couple of pages, but it needed to be in a more prominent spot, because it is really solid and fills in many gaps here.
By Chip Phillips
From: Broomfield, CO
Apr 25, 2008
Thanks for the plug Caleb. FWIW, the blog-guide on the above link should be completed by the end of 2010. It has been a much longer process than I expected.

It was always my hope that I would publish this guide as a fold-out map on tear-proof/waterproof kevlar paper. At this time, however, I believe the online format works best for this sort of endeavor. Entries may be edited/modified, etc. as unknown and new information comes to light.

As of 01/2010, approximately 670 problems covering more than 2/3 of the mountain are up on the blog-guide. More will be up soon. Hopefully, it will be a great resource for those of us who enjoy venturing up Flagstaff from time to time.
By GeoffElson Elson
Nov 28, 2008
The guide is crazy comprehensive, great job, really well done.
By greg bahr
Oct 10, 2009
Hey, can everybody list what they think are the best classic boulder problems on the mountain? I'm trying to make a list of the best boulder problems associating history and great movement for the grades of V0-V12. Curious to get others input on the subject!
By Peter Beal
From: Boulder Colorado
Apr 23, 2010
Join local climber/OSMP Trail Guide Peter Beal and Ranger/Naturalist Geoff Jasper for an introductory program for Flagstaff Mountain, one of the most important urban bouldering areas in the country. Get the beta from Peter on Flagstaff's major formations, dozens of problems, and information on environmentally sound bouldering practices. Geoff will answer questions about park resources and policies. We will also be joined by Chip Phillips, Flagstaff Mountain bouldering guru, for any questions about specific problems or other climbing-related info. Meet at the First Overhang Parking Area at 10:30 on Saturday, May 1. This hike will last approximately one hour. The tour will not provide technical instruction or safety advice related to bouldering or climbing.
By David Hertel
From: Haines, Alaska
Nov 8, 2010
Does anyone know what problem this is? Nobody I've talked to does. It's one of my favorite climbs on Flagstaff Mountain.
Rock Climbing Photo: Robby at the top.
Robby at the top.
By Peter Beal
From: Boulder Colorado
Nov 10, 2010
The arete on the right is a fun V0, the left is a good V3 through the undercling. Look up the amphitheater areas in Chip's online guide.
By David Hertel
From: Haines, Alaska
Nov 10, 2010
Thank you. I don't know why it wasn't posted up on Mountain Project, but now it is.
By kzittle
From: Boulder, CO
Apr 19, 2012
Found a Patagonia R1 pullover balled up under a boulder near Tree Slab late tonight. Let me know if you are missing one.
By Pinklebear
Aug 27, 2012
Remember, Flagstaff Trail Days are coming! More info here:
By doug rouse
From: Denver, CO.
Nov 26, 2012
A large area has recently been closed just North of King Conquer. The area was previously posted closed from Feb -to-August for raptors I assume. Anyway, A recenly re-discovered proj from the early '90s (Chip Phillips lists this as the "Forgotten Boulder"), is now reached only by hopping a newly created fence, along with numerous saplings laid across the unobtrusive trail. No notices have been posted on this closure, other than the fence and saplings? The boulder in question was "on this side" of the closure's marked for what gives?
By Chris Beh
Nov 27, 2012
If the fence in question isn't posted with a raptor closure or as a Habitat Conservation Area, then it isn't closed to use behind the fence. It is like a cattle fence...designed to keep dumb creatures from mindlessly following a trail that leads them where they probably don't want to go anyway. FWIW, there is a well used social trail in that draw that drops straight down to Boulder Creek and comes out behind a commercial building (no resisdential property crossing necessary) just South of Eben G Fine. I'm sure OSMP would prefer people stay out of there, but until it is designated an HCA, you can go climb that Forgotten Boulder.
By MJ Smoot
From: Broomfield, CO
Dec 2, 2012
There were a number of improvements and trail modifications made during the recent trail work days in Sept. and beginning of October. New landing areas were created for popular areas and fences were erected to prevent land erosion and preserve the natural habitat from damage cause by the vast number of social trails. As one of the volunteers that worked on the project, we ask that you stay on the clearly marked trails and do not "jump" fences or take what you believe to be a shortcut. You're still able to access your favorite areas, and if you can't it is because, they are in a conservation area.

You'll notice major improvements, especially to landing areas, at the First Overhang and Upper-Y Traverse. Please help protect the area for future generations by staying on trail and packing out whatever you carry in.
By Rodger Raubach
Apr 16, 2013
Sigh! Sob! I recently visited Flagstaff after having been away for many (nearly 25!) years. The place has been "loved to death!" The ground level for almost all the boulders has eroded away by 12"-20" for some. I simply left in disgust without putting on my shoes. I was fortunate enough to be climbing there while it was still pretty "virgin." i.e. I started bouldering on Flagstaff in 1959!
By D@n Morta
From: Boulder, CO
Oct 24, 2013
Flagstaff is CLOSED to all non-residents as of October 24, 2013. I called OSMP and they confirmed the closure. Asked if I could walk up and was told I'd have to get past the ranger at the bottom. I have no idea what that means. Probably just steer clear of this area until it re-opens. When it does, it will be posted on OSMP re-opened climbing areas.
By Hunter Damiani
From: Boulder, Colorado
Mar 29, 2014
Here is a video of a new problem I put up on Flagstaff. It climbs "South Overhang" V3 but WITHOUT the Pedestal/Other Boulder. Super rough top out/epic beached whale with very southern style, sloper campusing. It's called "G.R.I.T.S." (Girls Raised In The South), V10, due to is southern style and very gritty texture. I put it up about 8 years ago, but it is never chalked, and I don't think it ever been repeated hopefully it can go up on Mountain Project now, and more people will be interested in giving it a go. It starts with a really cool two finger, quartz crystal crimp for a right hand and left hand on a slopey pinch, campus left hand to sloper then right to sloper, to multiple campus bumps with right hand to a vicious unforgiving mantle. "G.R.I.T.S." climbs the south face of the Rock Shelter Boulder in the Upper Great Ridge/King Conquerer area.

By Chip Phillips
From: Broomfield, CO
Apr 7, 2014
That was sick, Hunter!
By Flatirons Climbing Council
Jun 9, 2017
Hello everyone, OSMP in collaboration with Flatirons Climbing Council is hosting a trail repair event on Saturday, June 24 from 8am to 4pm. We are looking to have 25 volunteers on Saturday and five volunteers on Wednesday (8- 2pm) to prepare the work site.

The objective is to repair the area surrounding the Pebble Boulder:

On Saturday. we will meet at the New Vista High School (Baseline & 20th) to register and car pool to the Crown Rock parking lot. Lunches and FCC t-shirts will be provided to all volunteers. To register for the event go to:

Thanks for you help in preserving a treasured bouldering resource.


Mountain Project

The Definitive Climbing Resource

MTB Project

Next Generation MTB Trail Maps

Powder Project

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