Mountain Project Logo
To save paper & ink, use the [Hide] controls next to photos and comments so you only print what you need.

Petit Grepon

Colorado > Alpine Rock > RMNP - Rock
Warning Access Issue: Closures DetailsDrop down

Description

By now, this spire has become one of the most sought-after alpine routes in the country, and along with the Casual Route is likely one of the two most popular routes in RMNP. It is a great idea to have a plan B if you intend to climb this. There are numerous alternatives in the area.

The climbing is excellent on the standard route, and the summit is one of the most spectacular in the Park, or anywhere.

Getting There

Park at the Glacier Gorge Junction Trailhead (a mile below Bear Lake), and hike five miles or so to Sky Pond (above Loch Vale).

Scramble up talus above Sky Pond to the Petit, which offers a steadily narrowing South Face and is overshadowed by the Sharkstooth to the West and flanked by the Saber on the East.

Possible Descents

Andrews Glacier trail descent: per Paul Huebner: we did short rap down the back on the east side and traversed over to other spire behind it. Then we scrambled up to our left/west through chimney that opens up onto large ledge/ramp leading down to the base and back side of that spire. From there, we descended gentle snow field down to talus and continued on down the Andrews Glacier Trail (approach for Sharkstooth) to Loch Vale and on down to Glacier Gorge Parking lot.

Rap descent - per James Beissel: - All of the rap stations are bolted. If you are rapping off anything besides bolt you are screwing up.- You will need two 60m ropes- All of the raps are double rope rappels- Do not try to rap into the gully!!!- You should not have to downclimb at all

1. Rap from a Fixe anchor at the (climber's) right end of the summit. ~160 ft.
2. Rap from two Fixe ring anchors just past the terrace to a pair of Metolius rap bolts. ~160 ft
3. Rap from the fatty Metolius bolts to the big grassy ledge. ~160 ft. The next set of bolts are about 50' to your left at eye level, above a chimney of sorts. Addendum: it's exposed clipping the anchor.
4. Rap from the anchor over the void (homemade hanger + modern Fixe ring bolt). Pass up the grassy ledge (Second Terrace) at about 160ft. and aim for the big horn about 20' below you. There's probably slings around the horn. They'll help you spot the station, but you will actually be rapping from bolts below the horn. ~180' ft.
5. A 200+' rap to a big grassy ledge (First Terrace). The next bolts will be about 50' climber's right. Addendum: you may not reach this anchor, but there is a slung boulder at ~165' to make a short additional rap.
6. Another 200' rap to the ground off two Fixe ring bolts.

Routes from Left to Right

5.10- 6a 18 VI+ 18 E1 5a R
 1
Neathawk-Collett
Trad, Alpine 6 pitches
5.9 5c 17 VI 17 HVS 5a
 172
Southwest Corner
Trad, Alpine 9 pitches
5.8 5b 16 VI- 15 HVS 4c
 756
South Face
Trad, Alpine 8 pitches
5.10a 6a 18 VI+ 18 E1 5a X
 10
South Face Variation: La Porte d…
Trad, Alpine
Route Name Location Star Rating Difficulty Date
Neathawk-Collett
 1
5.10- 6a 18 VI+ 18 E1 5a R Trad, Alpine 6 pitches
Southwest Corner
 172
5.9 5c 17 VI 17 HVS 5a Trad, Alpine 9 pitches
South Face
 756
5.8 5b 16 VI- 15 HVS 4c Trad, Alpine 8 pitches
South Face Variation: La Po…
 10
5.10a 6a 18 VI+ 18 E1 5a X Trad, Alpine

Photos [Hide ALL Photos]

A view from Sharkstooth summit.
[Hide Photo] A view from Sharkstooth summit.
Sky Pond and the Petit Grepon.
[Hide Photo] Sky Pond and the Petit Grepon.
The Petit Grepon from the Gash.
[Hide Photo] The Petit Grepon from the Gash.
Morning glow on Petit Grepon and the Sabre.
[Hide Photo] Morning glow on Petit Grepon and the Sabre.
The Petit from the summit of the Saber.
[Hide Photo] The Petit from the summit of the Saber.
Petit by full moon.
[Hide Photo] Petit by full moon.
One of the premier alpine spires in the USA.  Weekdays and early starts will avoid the crowds.  Or do the uncrowded SW variation.  Or the Saber next door.  PREMIUM!
[Hide Photo] One of the premier alpine spires in the USA. Weekdays and early starts will avoid the crowds. Or do the uncrowded SW variation. Or the Saber next door. PREMIUM!
Sharkstooth, Petit Grepon, and The Sabre. A view from the south from Sky Pond. Summer 2001.
[Hide Photo] Sharkstooth, Petit Grepon, and The Sabre. A view from the south from Sky Pond. Summer 2001.
Climbers summiting the Petit Grepon, as seen from the Sabre in failing weather. Photo by T. Bubb 8/06.
[Hide Photo] Climbers summiting the Petit Grepon, as seen from the Sabre in failing weather. Photo by T. Bubb 8/06.
Marmots trying to steal my #1 Camalot on the second grassy tier of the Petit.
[Hide Photo] Marmots trying to steal my #1 Camalot on the second grassy tier of the Petit.
Historic note "original" Grepon near Chamonix, France.  Once "the hardest climb in the Alps", Mummery's first ascent route traversed the Grepon from L to R (N to S).
[Hide Photo] Historic note "original" Grepon near Chamonix, France. Once "the hardest climb in the Alps", Mummery's first ascent route traversed the Grepon from L to R (N to S).
The fifth rappel is off the Second Terrace and is a bit hard to find from above. Here's a photo looking up at the anchor location from below.
[Hide Photo] The fifth rappel is off the Second Terrace and is a bit hard to find from above. Here's a photo looking up at the anchor location from below.

Comments [Hide ALL Comments]

justin dubois
Estes Park
[Hide Comment] As of now the park is going OFF!!!!!!!I have not been to Loch Vale yet, but there is very little snow anywhere else and the Petit is a sunny place. Jun 24, 2002
[Hide Comment] The climb is unforgettable, but the descent could be epic if impatience is your best resource follow the 5 bolted rappels off the southeast side that wrap around to the south side, one scary reach from a large ledge and your home free. This climb is very cool, the best I've done in the park. The day I climbed it, not a soul in sight and the weather held up nicely, unfortunate fools the day before got hail the size of cherries. Sep 5, 2005
[Hide Comment] Just climbed the South Face route last Tuesday, conditions were great. The route is 99% dry. We also talked to some folks who climbed the South Prow on Sharkstooth. Looks like it's in good shape as well.

Snow on the hike up is in grape shape, possible in boots without snowshoes. You may desire crampons or an ice axe. Enjoy the early spring! Mar 26, 2007
Sunny Jamshedji
Houston, TX, USA
[Hide Comment] Just wanted to add my two cents concerning the descent. There are solid bolted rap stations for stretched 60m rappels (TWO ROPES!) to the base of the climb. We had a single 60m, and you can do it the grassy ledge, but we could not find intermediate rap stations for the last 400 feet. So, take two ropes and be happy! Jul 16, 2007
Paul Huebner
Portage, WI
[Hide Comment] When I climbed the South Face route in 1994, we did short rap down the back on the east side and traversed over to other spire behind it. Then we scrambled up to our left/west through chimney that opens up onto large ledge/ramp leading down to the base and back side of that spire. From there, we descended gentle snow field down to talus and continued on down the Andrews Glacier Trail (approach for Sharkstooth) to Loch Vale and on down to Glacier Gorge Parking lot. Made summit of Petit at 11, had cold beer we had stashed in creek near the Loch and were back at car at 3 PM, just ahead of huge raindrops. Course to do this you have to climb with your pack and take your approach shoes or boots, nothing new in the Mts. Jul 30, 2007
[Hide Comment] Climbed up to the pizza belay ledge before having to bail. Winter conditions make for a cold and windy ascent. Bring plenty of warm layers and don't skimp on the small gear. Also, bring as many long trad draws as you have to reduce the high potential of rope drag. The third pitch (traverse) or as I call it "epic pitch" is less than desirable in the winter due to snow. Used a 70m to lead, and it reduced the amount of total pitches to 5 or 6. (To the top) Found good bivy towards the base of the tower a good distance up from Sky Pond. Better to take the Girlfriend up in the summer, LOL. Jan 3, 2008
Scott Matz
Loveland, CO
[Hide Comment] Me and Cale got off work Friday and had plans to head right for the Peton (Petit Grepon). After a ten hour shift of slinging steel, I figured it would be nessesary to pick up a six pack before the hike. Hitting the trail head at 7pm, we biveed near the Loch and finished in the morning. Getting to the base of Petit at 600. We scramble up the first two pitches in about an hour 1/2. The third and forth pitch is what slowed us down a bit. I lead the forth pitch and ended to the left of the ramp and pretty much screwed us from there. Sorry Cale. We both noticed the ramp to the right we should of anchored at. Being so far left, there was no pro on hard face moves for thirty feet. Our only choice was to traverse left and rap down to the grassy ledge, on the way over to the slings I had wedged my foot in a side crack made a small move and twisted the shit out of my ankle. I heard a crack and knew our time was done. On our way down we got caught by another team. We figured we'd let them pass by that time my ankle was killing me and decided to rap off. Pretty sketched, we called it a day. Very disappointed but content with our efforts. This was my first attempt of an alpine climb and ready to get back up there maybe before winter. I learned one brilliant mistake on an alpine climb could cost it for you. You betcha the hike down after that felt like an eternity. Sep 22, 2008
Cale Farnham
Loveland, CO
[Hide Comment] Sweeta ass route! Super exposed after the 3rd pitch, but bomber pro! Good job, Scotty, we'll get this one, we were a little rushed so be prepared! Weather was great but towards the end got a little sketchy, would love to do a winter ascent on this big guy! Sep 29, 2008
Clint Locks
Boulder
[Hide Comment] Beautiful hike in and the Cathedral Spires are AWESOME!

The climb was equally beautiful. You can reach the 1st Bench with a 60 meter, and, if you belay higher up in the chimney (25 ft, +or-) for the 2nd pitch, you can string 2 and 3 together, giving the leader an interesting chimney/5.7 crack to reach the second bench.

After the next chimney pitch, The climb goes vertical, beginning the real deal. Stellar climbing! Up higher, I don't know what the Gillett guide meant by 'sparse pro' on the upper 5.7 'meandering' east face pitch; I found plenty. The Pizza pan ledge at the end of that pitch reminded me of the Yellow Spur's arete belay. Very cool! Get comfy.

The final 5.6 summit pitch needs attention, as there really ISN'T good pro for THAT one. It's all there, however, and the summit is amazing! If the weather's holding, definitely spend a little alone time up there before pulling up the slack.

On the descent, watch for ropes sticking on the upper rappels. Also, rock fall is very possible (probable?), so be cautious. But that's all part of climbing, so really doesn't merit mentioning, generally. Whatever. ENJOY IT! Jul 10, 2010
Dave Polan
Worcester, Massachusetts
[Hide Comment] Rap description is right on, but slings are removed from block at the bottom of the 4th rap. Look for a big L-shaped block perched on the edge of the lower tiers of grassy ledges and the bolts are right below it. I spent a bit of time searching for them. From there you should reach the 1st terrace w no problem w two 60m ropes Jul 19, 2012
[Hide Comment] Really helpful description of the descent via the five or so raps. We missed the fixed rap rings for the third rap (be sure to keep looking climber's left around 160 feet) but continued for roughly 180 feet to a solid block that's slung with good webbing and a cold shut and rap ring. From there, it's about a 40 foot rap down to the large grassy ledge where you gain fixed rap anchors at the far end of the ledge (as described on MP site). For the fourth rap, note that there isn't any cordage currently on the horn, though it's pretty obvious and you will see the rap station just below it.

We climbed the Petit (south face) on 9/5 and had amazing weather and, even better, the whole route to ourselves all day! Sep 6, 2012
Nate Flynn
United States
[Hide Comment] We had the whole route to ourselves as well! And it was beautiful weather as well! August 2011! Aug 12, 2013
Mark Oveson
Provo, UT
[Hide Comment] The spire directly behind (north of) the Petit Grepon is called the Penknife. Here's an alternate descent route for the Petit:

From the summit of the Petit, rappel 100' to the north and scramble down the very narrow ridge to the base of the south face of the Penknife. One moderate pitch with a 5.6 move or two gets you to the summit of the Penknife. Rappel to the north from slings to the saddle between Sharkstooth and the Saber. Hike and scramble north down the Gash to the Andrews Glacier trail. Jul 21, 2014
Daniel Worley
Big South Fork, TN
[Hide Comment] Has anyone been up there lately? What are the conditions? May 20, 2015
Caleb Mallory
AMGA Certified Rock Guide; PNW
[Hide Comment] So, I climbed the south face a couple weeks back on a beautiful Saturday morning, and the only other climbers I saw were the rangers doing a link up. Where were the infamous crowds I've heard so much about? Aug 10, 2016
Andy Hansen
Longmont, CO
[Hide Comment] Caleb, those people have all graduated from crowding the Petit Grepon to crowding the Casual Route. Get with the program. Aug 10, 2016
Reedrombo
Home is where you park it
[Hide Comment] Hey, girl named Marisa on the south face on Sept. 10, I was on the southwest corner and we snapped photos of each other halfway up but never linked up afterwards. You should message me so we can swap photos. Thanks! Sep 11, 2016
[Hide Comment] If anyone ever finds an iPhone or pieces of one below the SW corner of the Petit, I'd love to try to recover it! Who knows where it ended up - probably in the Gash somewhere. Message me if you come across it. Oct 31, 2016
Jeremy C
Denver, CO
[Hide Comment] My partner and I climbed this yesterday and had a great time. We took the southwest corner and found it to have a large number of loose rocks but really quality pitches and amazing exposure. Tricky gear in a few spots and a definite roof crux up around P5-6. We chose to try this alternative descent and took only a single 70m rope with us.

ALTERNATE DESCENT BETA:
We did a similar descent as Mark and Paul describe, except we did a very necessary second rappel that I'm not quite sure how you would avoid. For the first rap, aim for a pinkish, broken, sidewalk-looking ledge below with visible tat anchor just past it. Scrambling over to those and getting the rope pulled is exciting. Be careful. The tat anchor for the second rap is currently a little old looking but seemed solid enough. We backed it up for the first. A second rappel gets you down to a cool spot with 2 corner lines that you could potentially use to escape. We climbed the left side, 50' or so up a chimney/corner. There were a few easier 5.moves culminating in an easy squeeze chimney that will probably require you to take your pack off. We didn't rope up, but some people will probably prefer to. From here, it opened up into another little, rocky alpine field and, eventually, a saddle and a drop down to the north for a long time. Snow conditions will probably vary greatly from here. We traversed a scary but super solid, 80 degree snow slope then hiked down boulderfields and glissaded amazing snow fields for hundreds of feet, eventually making it back down to the Andrews Glacier trail. I'm not really sure of the difference in time, but this way seemed pretty fast compared to the traditional alternative. Definitely more adventurous! Jul 3, 2017
Russ Moore
Littleton, CO
[Hide Comment] Retrieved two ropes from the raps on Sat 8/5 mountainproject.com/forum/t…. Aug 6, 2017
Charles Rackson
Boulder, CO
[Hide Comment] Hey, yesterday (Sunday, 6/10/2018) we descended the standard rap route. On the last rap, after pulling our tag line until our lead rope was out of reach, something got stuck, and we had to leave the rope (and a locker) up there. We trimmed off the end of the tagline, in an attempt to leave less trash out there, but it would be really great to get the rope back.

If, in the next few days, someone is willing to carry out that rope and return it, we'd be very grateful, and would gladly give you $70 for your trouble! It's a 70m 9.5mm orange Petzl rope.

Also, if you don't want to pack it out, but could drop it onto the ground could you please let me know? In that case, I'm guessing something would chew it up, but I'd still hike out to pack out the trash. Or, if you notice it's gone completely, it'd be great if you could let me know so that I don't waste a hike out trying to pack out the trash.

Thanks! Jun 11, 2018
[Hide Comment] Climbed Southwest Corner today 6/15/18. No stuck ropes. Jun 15, 2018
Charles Rackson
Boulder, CO
[Hide Comment] Thanks for letting me know, Wes! Jun 17, 2018
Roger K
Colorado Springs
[Hide Comment] Don't be scared off by the comments of Leo "DO NOT--repeat, DO NOT do this climb on a weekend."

Yes, it can be busy just like many of the Front Range climbs. Went on a Saturday over Labor Day weekend, and there was one party on the SW corner (us) and one party on the East Face all day, and last time I went climbing about a year ago on the East face, again on a Saturday, there was only one party ahead of us.

However, I would be prepared for alternative routes in case everyone decides to climb the route on the same day, but to say never go on a weekend is garbage. Sep 8, 2019
Jason Shumaker
Salt Lake City, UT
[Hide Comment] What is the best guidebook for this area? I have seen a couple out there and was wondering if one was better than the other. Thanks! Nov 21, 2019
John Crone
Denver, CO
[Hide Comment] Jason, I think Rossiter's new guide is fantastic. I also think it's the newest comprehensive print guide out there for RMNP. Check it out here: fixedpin.com/collections/cl…. Nov 21, 2019
Michael Spiesbach
Boulder, CO
[Hide Comment] From what I saw last year, the Sharkstooth seems to be the gangbanged spire these days...did the Petite on a Saturday and only saw one part way way below us.... Counted like 5 groups on the Sharkstooth and could see a group at every belay. Wild considering how much more heinous the approach to it is. Apr 29, 2021
Vaughn
Colorado
[Hide Comment] You can combine the 2nd and 3rd rappels with double 70m ropes. Aug 13, 2021
Greg R
Durango CO
[Hide Comment] Are there any intermediate anchors on the two lower raps that would make it possible to rap this with two 50m ropes? Jul 15, 2022
Karl Henize
Boulder, CO
[Hide Comment] The description of the 2nd and 3rd rappel distances seems off to me. The Abegg topo describes the 2nd and 3rd rappel distances as 130 ft and 100 ft, which seems a lot closer to the truth. You can bypass the 3rd bolted rap station by rappelling 210 feet from the 2nd bolted rap station to the “big, grassy ledge” (where you can walk unroped to the 4th rappel anchor), not to be confused with the bigger grassy “terrace” above. Our 65m (213 ft) static tagline made it all the way to the large grassy ledge with a couple meters to spare.

You can also do this as 200 ft rappel to small ledge 10 ft above the big grassy ledge. Most people should feel comfortable unroping on this small ledge and scrambling down third class terrain to the big, grassy ledge. If you do a single strand rap on a 60m rope and tie a cordallete to a second 60m pull cord, you should be able to comfortably reach the larger ledge on rappel and pull the ropes from the larger ledge.

The 3rd bolted rappel station is hard to find, and most parties planning to descend the bolted rap line should be able to skip it. Jun 21, 2024