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Auldridge Jump Problem 
Bisher Traverse 
Calamine Lotion 
Can Opener 
Cletus Lives 
Cloudwalker (submitted as 420 crack) 
Crazy Cody 
Crushed Ice 
Cyrcadian Rythym 
Diamond Dogs 
East Slab 
F.A.S.T. (fuckin awesome stoner traverse) 
Fire Pit? 
Fuck You Finger 
Grey Matter 
Hank's Arete 
Hank's Lunge 
Hickman Over the Poudre Bridge 
It's Ice 
Johnny and Hodgey 
Johnny and Hodgey Right Arete 
Little Red Volcano 
Moderate on Left Face (aka The Mace) (Mace Boulder) 
Mr. Harry  
N Face of Warmup Boulder 
NW Arete - Warmup Boulder 
Oatmeal Bath 
One Ton Ho 
Perch, The 
Public Property 
Puffing Stone Direct 
Puffing Stone Traverse 
Rasta Font Trainer 
Scuba Steve 
SE Bulge of Puffing Stone 
Sharma Dyno 
Sharma Traverse (Direct) 
Short Chubby Demon 
South Face of Warmup Boulder 
Stickman Walking Over the Brooklyn Bridge 
Streamside Sloper Traverse 
SW Arete of "Chucky" Boulder 
SW Face of The Warmup Boulder aka Party Trick 
Swedish Chef, The 
Tollebooth Willy 
Warmup, The 
West Seam of Warmup Boulder 
Where's the Catch 

420s Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 7,757'
Location: 40.70846, -105.75205 View Map  Incorrect?
Page Views: 32,922
Administrators: Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Kristine Hoffman (sitewide)
Submitted By: Anonymous Coward on May 27, 2002


60° | 27°

37° | 28°

51° | 36°

52° | 30°

48° | 30°
You & This Area
Best climbs for YOU in this area
Your opinion of this PAGE:    [1 person likes this page.]
BETA PHOTO: Top view, 420 Boulders from Kinikinik Colorado.

The Kingpin Boulder is closed to climbing MORE INFO >>>


The 420s are a recently developed bouldering hot spot offering classic Camp 4 like problems on mostly free standing boulders. A subalpine setting makes this an ideal place to boulder in the summer. Most boulders are on state forest land. However, some of the more famous problems (Kingpin) are on private property. When in doubt ask a friendly Ft. Collins local. Camping is not allowed at the 420s.

Getting There 

From Boulder, Go north to Ft. Collins on I-25. Get off on the exit after Prospect. Follow signs for CO 14 and US 287 until you get to the gas station at the entrance to the Poudre Canyon (there is a sign). Drive up for a ways (20- 30 miles.) Keep an eye out for Pingree Park . The 420s are 16 miles after Pingree Park. Park, go through gate on right side off road, and follow the trail (a 5-10 minute walk).

Climbing Season

Weather station 2.2 miles from here

57 Total Climbing Routes

['4 Stars',4],['3 Stars',25],['2 Stars',24],['1 Star',4],['Bomb',0]

Classic Climbing Routes in 420s

Mountain Project's determination of the classic, most popular, highest rated climbing routes for 420s:
Johnny and Hodgey Right Arete   V0 4     Boulder, 10'   
Puffing Stone Direct   V2-3 5+     Boulder   
The Warmup   V3- 6A     Boulder   
SW Face of The Warmup Boulder aka Party Trick   V3-4 6A+     Boulder   
Hank's Arete   V4 6B     Boulder, 10'   
Johnny and Hodgey   V5 6C     Boulder   
Hank's Lunge   V5 6C     Boulder, 10'   
Puffing Stone Traverse   V5 6C     Boulder   
Scuba Steve   V5-6 6C+     Boulder, 10'   
Tsunami   V6- 7A     Boulder   
Scarface   V6 7A     Boulder, 10'   
The Perch   V6 7A     Boulder   
Bisher Traverse   V7 7A+     Boulder   
F.A.S.T. (fuckin awesome stoner traverse)   V8 7B     Boulder, 10'   
Tilt   V8 7B     Boulder, 10'   
Stickman Walking Over the Brooklyn Bridge   V8 7B     Boulder, 1 pitch, 10'   
Divergence   V8-9 7B+     Boulder   
Can Opener   V9 7C     Boulder, 10'   
One Ton Ho   V9 7C     Boulder, 10'   
Sharma Dyno   V9-10 7C+     Boulder, 10'   
Browse More Rock Climbing Classics in 420s

Featured Route For 420s
Rock Climbing Photo: Warm-up Boulder left of The Perch.

Tsunami V6- 7A  Colorado : Fort Collins : ... : 420s
Left of The Perch arete, traverse from small crimps up and right across the wave-like face. Awkward! ...[more]   Browse More Classics in Colorado

Photos of 420s Slideshow Add Photo
Rock Climbing Photo: Top view, Area/ Entrance. Hank's & Circadian Rhyth...
BETA PHOTO: Top view, Area/ Entrance. Hank's & Circadian Rhyth...
Rock Climbing Photo: 420 Boulders, Circadian Rhythm, Hold Name: High Al...
420 Boulders, Circadian Rhythm, Hold Name: High Al...
Rock Climbing Photo: Entrance.
BETA PHOTO: Entrance.
Rock Climbing Photo: View, almost to the entrance.
BETA PHOTO: View, almost to the entrance.
Rock Climbing Photo: 420 Boulders, I forgot which one though.
420 Boulders, I forgot which one though.

Comments on 420s Add Comment
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Comments displayed oldest to newestSkip Ahead to the Most Recent Dated Aug 10, 2017
By Anonymous Coward
Apr 17, 2002
Where is the add a rock link?

Some more info/beta: the first area you come to is a single black boulder on the dirt road. The main 420's area is farther along in the woods. Just look for an obvious trail and walk for 3 minutes to the main area. The Kingpin area is even further down the trail. It's a 5 minute stroll past the main area. The Kingpin area is right next to some cabins. Please respect the No Trespassing signs and keep the noise level down. If you're bouldering, and can see the buildings, then you're probably too close.
By Michael Komarnitsky
Founding Father
From: Seattle, WA
Apr 19, 2002
Ummm... kind of screwed that up, we're working on an improvement to the site. In the meantime, just go to Contribute (left side navigation bar) and click on suggest a rock...
By Anonymous Coward
Apr 22, 2002
This area should be removed. It is part of the fort collins climbing world not boulder's. It is a disgrace to FC climbers to see it on this site. Its probably the worst description I ve ever seen anyways. Don't climb on kingpin!
By Mark Morehouse
Apr 23, 2002
Get off your high horse Anonymous Coward. Obviously not every route, or really any, belong to Boulder or anyone else. This site is great and has given useful, although sometimes inconsistent, biased, or incorrect beta to anyone who may want it. If you don't like it, don't use it. Or better yet, make a useful contribution.

Based on your ignorant and selfish philosophy you have just limited your own climbing opportunities by a billionfold becasue now you can't leave Fort Collins. Stay away from Vedauwoo, it belongs to Larmie. Don't go to Lumpy or climb in the Park, it belongs to the climbers in Estes. Stay away from the South Platte, and definitely don't go to Eldo.

Stop making Fort Collins climbers look like the very people you probably despise from Boulder for the same reasons you despise them. Actually, keep it up, the crags will be less crowded without you!
By Old Fart aka Dave Bohn
Apr 23, 2002
Sorry but this is the real world and there is no difference between Poudre, Hueceo, or Font.! They're all places that people have heard/read about and want to climb at. Unless you personally own the land and are trying to keep people off your property then I think your groundless provinciality is just a little trite. But yeah stay off Kingpin; it is on private property and the description to the area is absolutly lame!
By Sean Smith
Apr 25, 2002
If the description to Poudre is the worst you have seen - Fix it!

Poudre is not a private area anymore, it has gotten to much attention recently. Better that the access is clearly defined so that people know where they can go and where they can't.

Poudre Season is here and its access should be clarified and public.
By Anonymous Coward
Apr 26, 2002
I am sorry about the bad description. It would be great if someone fixed it. I thought the time was right to add this popular area particularly because the new Benningfield guide won't have it. Poudre to the people! jm
By Anonymous Coward
May 4, 2002
It's just amazing that you see stuff like the Poudre in Magazines and on the internet, it's really not that spray worthy. Anyways, perhaps it will be a good distration from colorado's real bouldering destination, for all you bumbles out there.
By Anonymous Coward
Jun 4, 2002
Please show this area a great deal of respect. Keep your voices down, DO NOT climb on the kingpin boulder and CLEAN UP YOUR TRASH. There are no ratings for any of the problems except cicadian rythm which is V14/15
By Anonymous Coward
Aug 12, 2002
no ratings on the problems? you better take a look at some scorecards at before you say that again.
By Anonymous Coward
Jul 9, 2003
Lost a pair of MADROCK Mugen shoes over the holiday weekend (7/5) at 420 boulders. Please email if you found them. Many thanks, Chris.
By Krister Sorensen
From: Centennial, CO
Jul 20, 2003
I really wish that someone would make some sort of topo for this area that knows it best and post it on this site. I would do it but it would be the worst topo ever and I would get blasted. If anyone knows of one or can make one then you should email me at Also, the rock here is the most wonderful thing.
By adam penny
Nov 7, 2003
need pinepoint directions to the 420's. whats the weather like at this time.thanks
By Anonymous Coward
Nov 1, 2004
The 420's are a superlative bouldering zone. I am sure Merlin is excellent as well. Is there a guide to the boulders?
By Anonymous Coward
Feb 14, 2005
where is short cubby demons???? moving to CO on thursday and heard about it last year any help???cheers
By Sean Bradley
Feb 22, 2005
Short Chubby Demon is in the main area in the back of the two boulders leaning against eachother.
By Ricky Newman
From: Fort Collins, CO
Jul 28, 2006
Some fun climbs for beginners at a secluded rock next to the stream.

FYI: Bring plenty of mosquito repellent as they are active through-out the day.
By Dan S.
From: Boulder, CO
Aug 19, 2008
WARNING: You must possess a "Colorado Wildlife Habitat Stamp" to climb in this area. A fishing or hunting license is also valid. It may be purchased at any Wal-Mart or at one of the roadside convenience stores along the Canyon. This is a State Wildlife Area (SWA) owned by the Colorado Division of Wildlife. See the following website for more information.

As we were leaving the 420 area several officials with the DOW informed us of the requirement. They had just posted a sign at the pull-off that states the requirement. Each climber must possess a stamp ie. one stamp is not valid for a group of climbers.
By Aaron Martinuzzi
Nov 1, 2008
I'm looking for some beta on three boulders uphill from Hank's. The first has two established problems, near/on its downhill arete. The two boulders a little bit farther uphill seem to have seen human traffic (i.e. terraced rocks, some trails, debris, cleaned-up loose rock) but don't seem to have established lines.

The furthest of these three boulders is really tall, has two large scoop-like features on its downhill face, and a cave on the other end. Looks like lots of potential for problems way beyond me. The closer, undeveloped boulder only had one worthwhile face (its uphill face) and a good bit of lichen. Anyone know what I'm talking about?
By Scott Salisbury
From: Fort Collins, CO
Nov 7, 2008
I'm pretty sure that the arete on the first boulder you are talking about is the Poudre Arete and I have been told that it is V10-ish, and I'm not really sure about anything else up there.
By Chip Phillips
From: Broomfield, CO
Nov 7, 2008
I can only recall 2 climbable boulders directly up the faint trail from Hank's Boulder. I think there may be a small one in between them, but can't remember.

Here's some info, albeit slightly incomplete ... right to left across 1st and 3rd boulders.

1st (big) Boulder R->L
Reach Out V6ish (FA: BS)
Poudre Arete V9/10 (FA: HF - low start to Reach Out)
Mr. Harry V4/5 (FA: PG)
The Mase V4 (FA: PG - cheatstone) / V9/10/? (FA: BS - now broken)

2nd (small) Boulder
nothing maybe???

3rd (big) Boulder R->L
Unnamed V4 (FA: WL)
Merv Griffin V6 sds (FA: KG - sds to Unnamed)
can't remember V9/10 (FA: WL)
The Liger V9ish (FA: BS)

I'm going from memory here ... I'm sure someone else can fill in the gaps if I don't do it first. THANKS FOR THE UPDATE Seth!!!

FWIW, there are about 3-4 boulders off-trail 30-100 yards east of these boulders with problems on them. Nothing tremendous, but most definitely a few warmupy things one can do for a change of pace away from the crowds. About 30 - 50 yards east, I recollect a east-facing tall slab with lots of slabtastic funness to be had and an arete/face on the south side of the same block. There is also a short and steep moderate problem on a short block just south of the aforementioned slabular block. About 75 more yards to the east is a block with maybe 3 or 4 nice crimpy but moderate lines on the south side. Bring pads for these as the landings on a couple of them leave a lot to be desired.

By Seth Murphy
Nov 16, 2008
Poudre Arete FA: Herman F., V9/10.

The Mase FA: PG (cheat stone). Standstart done by Bennett @V9/10 unrepeated since Blake broke the left hand hold.
By Michael Byczynski
From: Denver, CO
Sep 14, 2009
How the hell do you get to this place???
Went 17 miles past Pingree, thought I found it but no.

Are the "gates" you go through giant, wood-like gates?
By Brett Billings
From: Fort Collins, CO
Sep 14, 2009
Definitely check out the guide as recommended above. There really isn't a gate, it's more like an opening in a wire fence and a very small pulloff the right-hand side of the road. You'll probably miss it the first time, but very soon after it there is a large pull off on the right hand side of the road. You can park there and walk back, or flip around and park a little closer.
By Andrew Ryder
From: Arizony
Oct 10, 2009
Habitat stamp is no longer required to climb at the 420s or any other SWAs in the canyon. Hooray!
By csultimate
Nov 26, 2009
Are you sure they no longer require a stamp or did someone just take the sign, thought it was wilderness designation (stamp required), but they do make some exceptions. Very cool if the restrictions are gone for anyone that does not possess a fishing license or the stamp by itself.
By Brett Billings
From: Fort Collins, CO
Nov 27, 2009
Yep, if all you are doing is climbing you don't need to have the stamp. It's only required for people hunting or fishing now.
By Jason Haas
Dec 18, 2010
The new, comprehensive Poudre Canyon book is in stock. Get it off the Fixed Pin website or in any of the local shops. 100% of the money goes to Craig Luebben's daughter's college fund.
By Kirk L
From: Fort Collins, CO
Mar 5, 2013
By S. Stember
From: St. Paul, MN
Mar 15, 2014
Anyone have a conditions update? Is there much snow atop the boulders? Good to go?
By Steve Guard
From: Boulder, CO
Nov 1, 2016
Does anyone have suggestions for camping options near the 420s? After doing a little looking around, it seems that most of the developed campgrounds are on forest service land and are closed for the season as of Sept. 25th....

Planning on making it up for a weekend and was hoping to find a good camping spot close by.

Any help is greatly appreciated. Thanks.
By NickEE D
Aug 10, 2017
Hey, Steve G. I have not found any camping around there yet, but I will let you know if I find anything.

Looking to fix the Kingpin Boulder problem hopefully...bring the boulder to us. Hint, hint.

Entrance to the 420 Bouldering area: L&L Colorado.
40.708461, -105.752054

Okay, so the closest camping I can find possible is if you take the Roaring Creek Trailhead and find somewhere 1/4 a mile away from the Cache La Poudre River. Then it's a little hike along the road before you get to the 420 Boulders entrance.

I added a bunch of pictures that show the view of arriving to the entrance, at the entrance, overview of the climbing area, and Hank's Boulder/ approximate location of Circadian Rhythm, etc.

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