Log In 
Report Type 
Full
Peak(s)  Unnamed 13139  -  13,139 feet
Williams Mountain  -  13,390 feet
Date Posted  07/16/2025
Date Climbed   07/15/2025
Author  WildWanderer
 From Lost Man Trailhead   

PT 13139 and Williams Mountain


23126_01


RT Length: 15.26 miles

Elevation Gain: 3918’


I started from the Lost Man Trailhead at 5am. This trailhead has capacity for around 35 vehicles, if everyone parks nicely. The trailhead is obvious.


23126_02


At the trailhead sign I went right, following the Lost Man Loop Trail.


23126_03


This is a well-maintained class 1 trail that passed by Lost Man Reservoir and then continued north, paralleling Lost Man Creek.


23126_04


23126_05


I followed this trail for about 4 miles. If you make it to South Fork Pass you’ve gone too far.


23126_06


At 11550’ of elevation I left the trail and headed north towards an unnamed pass to the right of PT 12683.


23126_07


For a visual, I was headed here:


23126_08


23126_09


When I got to the top of this small pass I had a visual of the route before me to PT 13139.


23126_10


I was disheartened. That cornice looked big. I sat on that pass for longer than I wanted, contemplating my next move. It was only July 15, and I’d already had over a dozen failed attempts already this year. Mostly due to cornices, but also due to wildfires (I evacuated twice) and getting “the knock” twice and being told I can’t park my vehicle at a trailhead overnight (even to leave it to go backpacking: it would be towed). I remembered hearing (somewhere) that the entire Williams traverse was clear of snow this week, so in my mind I figured it was possible to make it around the cornice. Needing a ‘win’ I decided to go for it. Here’s my route, dropping 620’ into the basin on an adequate game trail, staying to the right of the creek and avoiding the willows, and then climbing up the gully.


23126_11


23126_12


23126_13


At the base of the gully I once again stopped to rest and contemplate the ascent. That cornice looked really big (it was). But it also looked like I could go around it to the right. I ascended the gully, trying to stay in the middle but drifting towards the right because the terrain there was more stable. This gully is steeper than it looks and it took quite a while to ascend.


23126_14


The cornice was indeed large. At the base of it I thought I saw a line to the right that would lead me to the ridge, so I headed that way. Long story short, it did NOT go. I got myself into a very scary situation where the rocks and dirt (which was wet) caved out from underneath me and slid down, leaving me standing on a slick rock slab with no traction, and no way to go up or down. While it looks like it goes, even when standing right beneath it, it does not (at least not safely). It is much steeper than it looks from below.


23126_15


I was frustrated, especially since I’d heard someone else had already done the route this year. There were no footprints to be seen (I didn’t see any at all the entire hike), and no clear line to the ridge. I was heading back when I took a different look at the cornice, this time from above. There was about a foot of space behind the cornice I could crawl through (and get wet in the process) that would lead me to the ridge. I squeezed behind it and was quickly standing on the ridge.


23126_16


Once on the ridge I turned right and headed northeast to the summit. The terrain was class 2, and very rocky.


23126_17


I summited PT 13139 at 10:40am


23126_18


13139:


Once again I had a chat with myself on the summit. I am getting closer to finishing the 13ers, and when they’re done for me that’s it. I’m not going for 12ers, etc. because I’m starting a new phase of my life. However, I want to enjoy the 13ers for as long as possible. That’s a long way of saying I’m trying to stretch out my remaining climbs by making them multiple day trips. I’d planned on doing the Williams group in 3 days, but since if I returned the way I’d summited I’d need to gain over 600’ of elevation anyway, I figured I’d head over to Williams Mountain and summit that one today as well. So, I turned and headed southwest along the ridge towards Williams Mountain.


23126_19


The ridge started out calmly, then quickly became rocky. I stayed to the ridge proper on class 2 and 3 terrain.


23126_20


23126_21


Until I came to this point, where I dropped down to the left and followed the scree filled slopes before regaining the ridge.


23126_22


While it may look flat, there were a lot of ups and downs along the way.


23126_23


23126_24


Once on the ridge again I followed it south. There were large boulders to navigate, but the rock was pretty solid. This is where the ‘fun’ begins. For the rest of the route to the summit it’s intense class 3, if not class 4. It’s probably the most difficult class 3 I’ve done to date, bordering on class 4 in areas (I’m short, so a lot of the holds are a stretch). There are a few cairns in this area, but don’t rely on seeing them. This was an intense, exposed scramble, and more than once I got myself ‘stuck’ in a not so friendly position and had to backtrack (which was also not so friendly). Be sure of your holds, be sure of your moves, and please have climbing experience before attempting this climb because it only gets more difficult as you ascend. I stuck a little to the west of the ridge, heading south.


23126_25


23126_26


23126_27



23126_29


23126_30


I summited Williams Mountain at 12:55pm


23126_31


Williams Mountain:


After summiting I kept heading south, towards 13204.


23126_32


I’d thought the difficult climbing was over, but I was wrong. Almost immediately I was greeted with a rock slab I’d need to descend. I butt-schooched down this thing.


23126_33


Here’s looking back up at the rock slab


23126_34


That was the worst of it though. I went left and descended and then reascended this little gully


23126_35


Then I made my way down the ridge to a larger gully and followed it southeast into a basin. This gully was easily manageable, with game trails to follow. Towards the middle there were options to go left or right. Both went, but I took the right side.


23126_36


From the top of the gully you can see my route out of the basin.


23126_37


Here are some gully pictures


23126_38


At the base of the gully I headed southeast along the basin.


23126_39


At the end of the basin I followed the stream that was running pretty strongly all the way back down to Lost Man Loop Trail, staying to the left of the stream the entire time.


23126_40


Back on Lost Man Loop Trail, I followed it southwest back to the trailhead.


23126_41


23126_42


23126_43


I made it back to my truck at 4pm, making this a 15.26 mile hike with 3918’ of elevation gain, according to CalTopo. My numbers with Strava were different.


23126_44


23126_45


On to the next trailhead!




Thumbnails for uploaded photos (click to open slideshow):
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45


Comments or Questions
   Not registered?


Caution: The information contained in this report may not be accurate and should not be the only resource used in preparation for your climb. Failure to have the necessary experience, physical conditioning, supplies or equipment can result in injury or death. 14ers.com and the author(s) of this report provide no warranties, either express or implied, that the information provided is accurate or reliable. By using the information provided, you agree to indemnify and hold harmless 14ers.com and the report author(s) with respect to any claims and demands against them, including any attorney fees and expenses. Please read the 14ers.com Safety and Disclaimer pages for more information.

Please respect private property: 14ers.com supports the rights of private landowners to determine how and by whom their land will be used. In Colorado, it is your responsibility to determine if land is private and to obtain the appropriate permission before entering the property.