Mount Cayley (True Summit)

July 8-9, 2023

2385m

Whistler, BC

By volcanos standard Mt. Cayley is rather small, but is extremely rotten and broken. The attached Pyroclastic Peak has probably only received two ascents in the entire history, while the striking Vulcan’s Thumb is still unclimbed. The highest in this massif is Mt. Cayley itself which is also the easiest among the three peaks, but is still a serious climb. Two routes had been used – the N. Ridge and the S. Face. I’m actually not sure which of the two is easier but the selected few records on the internet in this modern era all took the south face so I consider that as the “standard route”. It might seem that the ascent can be done fairly easily on snow in winter or spring, but there’s a sting in the tail, a “Culbert’s 4th class” summit pinnacle. That kind of old school grade tells nothing except that the first ascensionists likely soloed it but also likely needed a rope for the descent. There was virtually no “beta” about the true summit pinnacle until 2022 where two accounts showed up. Winnie M. climbed in winter, did not write a trip report anywhere but told me in person that it felt like M4+ which I had no clue about other than knowing that’s equivalent to 5.8 on rock. Another group approached on skis in spring, climbed it on dry rock and reported “mid 5th class” with no pro. This group posted the trip report on bivouac.com (with no social media feed) so I had no clue until the day before I went for the climb.

Most ski mountaineers would not bother to ascend the pinnacle and that include Alex and myself back in 2016 when I went to climb it on skis. Not doing the true summit of Mt. Cayley was considered the “norm” back in the days so I somehow convinced myself that’s acceptable, but not until people started to climb the pinnacle and post their accounts. I still don’t understand why climbers/peak-baggers accepted just making to the base of the pinnacle as “success”, probably because of simplicity as to climb the true summit would upgrade this mountain to a totally different challenge level. This is very similar to what’s happening on Manaslu in the Himalayas. Everyone including some fabled alpinists all stopped at the “ridge point” but ever since a picture and an actual ascent (with account and proof) showed up in 2021 the new-standard had become that one must climb the true summit to claim the peak. Back in 2016 there was absolutely no “beta” about the true summit and the few online pictures made Alex and I believe the pinnacle was completely out of our league, so we did not even come prepared with rock climbing equipment. The plan was to not climb the pinnacle, so of course we came home without the summit. The climb to the base of the pinnacle was however, very straightforward on 40-45 degrees snow. With two ice tools it wasn’t much of a challenge at all.

Fast forward to the summer of 2023 I finally made the decision to properly finish the business with Mt. Caley, this time with Francis. I needed a strong rock climber capable leading a mid 5th class pitch on this kind of volcanic “chossneering”. This trip report is about the ascent to the true summit in July 2023, but I’m also leaving some pictures from the April 2016 ascent to the base of the pinnacle at the bottom of the page, just for reference or for those ski mountaineers only wishing to ascend to that point.

We decided to take a more leisurely 2-day approach. I thought it’d be doable in one day, but we wanted extra time for contingency, and the weather wasn’t 100% stable neither. There is a way to approach from Squamish River side, but I had no clue about the road’s status. I proposed that we should start at the Brandywine upper trail-head and ascend up and over Brandywine Mountain. This involved over 400 m elevation loss that must be regained on the way back, but I needed certainty. In SW BC the biggest unknown is usually the road access and I did not want that. The road to Brandywine’s trail-head is very rough, but is well known. In terms of gears we brought a single rack up to size 2 (overkill), a 60 m rope, extra cords and webbings, and I also made us to bring steel crampons and an extra ice tool, which proved to be overkill as well. I used two axes on my April ascent but this time the chute was completely melted out leaving nothing but some of the worst choss I’ve ever seen.

Mt. Cayley from Brandywine Mountain. GPX DL

Another reason to do this approach was to grab Brandywine Mountain for me. People do not believe that I hadn’t done Brandywine Mtn. yet but that’s because it’s too easy to be bothered with and the access would also never go away. I usually reserve these kind of peaks for bringing newer hikers, but tagging it en route to a bigger objective could also work. From the west ridge of Brandywine Mtn. we traversed over some broad but undulating terrain until facing a steep drop-off. We traversed right (north) to find a way to descend into the broad gully and then descended for another 100 m. We ascended and traversed across the next obvious col, and then I led a long side-hill traverse across a small north-facing glacier, trying hard to avoid unnecessary elevation loss/regain. Over the next col we descended another 100 m down to a perfect campsite where we ended up spending the night at. Due to the lack of “beta” we decided to camp at the next col and that was a foolish decision. The bump separating this perfect camping spot with the next col was the first challenge of the day. We bashed up some scree to the top of it, only to discover the other side was not suitable for camping. All I could see was black ice, moraines and murky water. The in-situ decision was made to ditch camping gears and ascend Mt. Cayley right away in the afternoon.

Mt. Cayley massif from the west ridge of Brandywine Mountain
Francis finding a way down to this col
Looking ahead to the long ass side-hill across this pocket north facing glacier
The glacial tarn under this glacier is very pretty
Francis traversing the glacier with sub-peaks of Brandywine Mtn. behind
Francis now on top of that intermediate bump with Mt. Cayley behind
Heading down from the top of that intermediate bump

There was thankfully a puddle of muddy water from snow melt that I used to filter enough water for the climb, and then we dashed down the west slopes of that unnamed bump. The descent was much more difficult than anticipated thank to the compact moraine-type of choss. There was also some 3rd class moves with some exposure. All footwork must be triple checked and sometimes it’s impossible. Some ginger moves later we descended a scree bench. There’s one more 5-m moraine band to descent (by sliding) and I didn’t know and worried about how to ascend that a few hours later. We descended more moraine choss down to the black ice and then easily ascended the ice to the firn line.

Descending the west slopes was horrible.
The moraine step of choss..
Down to the black ice, looking back at the intermediate bump
The dry glaciers are usually prettier than the ones covered in snow

The short glacier crossing seemed simple that we didn’t bother to fuss with rope. I led us cross and there were only some cracks starting to form, but otherwise the route-finding was easy. We just aimed straight towards a snow gully on the left side of the steep face under Cayley/Cayley S1 col. I made us don crampons but it probably wasn’t needed after all. The crampons nonetheless made the ascent easier. The slope was at most 35-40 degrees and in short time we gained several hundred meters to the col, and this was where the real adventure began. The route ahead still looked reasonable but the rocks were much worse than appeared. There’s a choss arete to gain the SE Ridge proper and this arete gave us a taste of the theme of the next few hours. While none of us was on purposely trundling anything we triggered probably several tons of worth of rockfall. Sometimes one orange-sized rock could induce a series of rockfall events down either side. Extreme care was needed as falling off either side would not be survivable. Onto the SE Ridge, the going became easier though still as chossy. The exposure to the west had eased so we cruised up to the base of the small snowfield. Too lazy to don crampons I led us squeezing through the moat into the gully system and it was bad, like 10 times worse than what we thought. Nonetheless we had made this far so we must try. A few meters above the snowfield I stepped onto some dirt and the weight of myself triggered a microwave-sized boulder at least 1 m below which almost took Francis off the mountain. From this point onward I knew we were in some full-on situation. I had climbed some of the worst choss piles in Rockies, SW BC and Washington and I had never seen rocks breaking in such unpredictable fashion.

Francis plodding up the snow-covered portion of this glacier
At the base of a steep couloir that we’d use to gain access to the upper mountain
Partway up the couloir/face, looking sideways
Mt. Cayley is literally glued together by mud
Francis with Pyroclastic Peak and Vulcan’s Thumb, his next objectives.. Or not…
Gaining Cayley/Cayley S1 col
Through the col we could see Mt. Fee and Mt. Garibaldi
The pointy finger in the foreground still waits for its first ascent…
It’s very colourful down west, but this is a horrendous area for climbing.
Gingerly plodding up the somewhat exposed moraine ridge
A full view of Pyroclastic Peak..
The gullies are completely dry now. Horrible place to be in…
I don’t know how these muds and ashes are still holding…
Another view looking back at Pyroclastic Peak

There are several gullies to chosse and back in 2016 I climbed the rightmost (longest, steepest) but that did not seem like the smart choice on this day. Instead, I led us traversing leftwards into the fattest, leftmost gully which would eventually lead us onto the west face, but about 1 pitch lower than the ideal west face traversing line, but more on that later. First of all we had to somehow made our way up this gully. Though only 3rd class, the scrambling was much worse than the grade suggested. 80% of the things we touched, big or small would come loose and the most solid formation was actually the dirt under our feet, but then the dirt could trigger rocks underneath. Again, we had made this far so we pushed on and made to the west ridge notch without incidence. I thought would get a break there but I was wrong. The west face traversing was just as shitty and exposed. The rocks on the west side felt like sand glued by dirt with nothing to be trusted. Nonetheless I dropped in and ginerly made across several gullies to about 2 pitches under the true summit. Building an anchor was impossible here, so we both soloed about 1 pitch worth of 4th class. I was already terrified and mentally done and I saw a boulder ahead that could possibly be used as an anchor. Francis soloed to the boulder and claimed that it “was not solid, but probably as good as we could find on this mountain”, so we slung it around. Francis soloed another few steps that I felt nervous to watch. I did not want to solo what he just did, so tossed the rope’s end and told Francis that I was about to give him a belay from this boulder.

Typical scrambling in the gully. The rocks are shit.
Onto the west face traverses…
Me leading the west face traverse. Exposed with nothing to hold on
Exposed and steep sandy ledges and slabs…
Francis following me across. It’s bad…
Me using that half-assed boulder as a belay station…

Meanwhile Francis made a very awkward transition to don rock shoes. There was no space for him to carry the boots, so he slid the boots down along the rope and I stuffed them into my already-heavy pack. We had not found a single place to sit, make footwear transition nor to ditch our snow gears so I carried literally everything up, including the approach shoes that I was planning to use for the climb. I didn’t want to risk losing any footwear, so opted to follow the mid 5th class choss in boots, which eventually turned out to be fine. Francis could not put in any pro until a few meters from the top, so it was essentially a free solo especially considering the half-assed anchor I belayed from. Francis finally managed to put in a .75 cam but it seemed like the walls on each side were wobbling, but nonetheless he made the summit. I followed up a more direct line (5.6 ish) since I wanted to minimize rope-induced rockfall. The few flanks that I had to pull on about midway up felt extremely sketchy that even with a top-rope belay I was sketched out.

Francis ready to lead the final pitch
Francis halfway up, still unable to put in any pro…
Me seconding the 5th class summit pitch
Summit Panorama from Mt. Cayley (true summit). Click to view large size.
Looking back down you can see all the other spires are lower now..
Mt. Tantalus and Pelion/Ossa behind the very tip of Pyroclastic Peak
Mt. Fee in the foreground with Mamquam Mtn. and Mt. Garibaldi behind
This is looking down towards Tricouni Peak area
Francis doing his usual pinnacle stand on the very tip of the true summit
I wonder if that tower in foreground has seen an ascent, or never…
The shadow of Mt. Cayley down the east face
Our group shot on the true summit of Mt. Cayley

The time was getting on so we couldn’t stay on the very tip of Mt. Cayley for too long. We again, made an in-situ plan about the descent as I just spotted a rappel station above the easternmost (longest) gully. The traverse from the base of the pinnacle to that gully, which was what I did in 2016 on snow, looked to be doable, so I planned a diagonal rappel towards that direction. At least one previous party rappelled off the true summit on an orange sling slung around a microwave sized block, which easily wobbled upon touching. I moved that sling to back-up another set of slings on a different block, and rappelled down. When I got down Francis noticed that the orange sling was already mostly cut, so he backed it up with another sling. The rocks on this mountain were sharp that our rope got stuck upon pulling, but thankfully it was in a position where we could easily scramble up to free. Francis did the work and also swapped his footwear back to mountaineering boots, while I carried the rope across the ledge to the top of the gully to set up the next rappel. Two 30-m rappels using existing stations got us over halfway down. The second station was not very solid, but was as good as we could find, so we used it. I had to build the 3rd station (thankfully, easy with a large block) as the previous party likely climbed it with more snow so they didn’t need the final rappel. This final rappel got us onto the snow so both of us donned crampons before going down. There’s actually a good moat to hide from the rockfall, and the rope amazingly didn’t get stuck again. We were now finally relieved. Using both ice axe and crampons we easily down-climbed the snow, and then walked down the choss arete while triggering another several tons of rockfall, and finally plunged down the steep snow onto the glacier.

The block in front of me wobbled but couldn’t trundle it down.
Me leading the first rappel, trying not to weigh on that block…
The sling was damaged after I came down…
Francis rappelling down the true summit pitch
Francis scrambling after freeing the stuck rope..
A review shot of the true summit pinnacle
The pinnacle is about 25 m tall, bigger than it looks..
The existing station to rappel into the uppermost gully
This place was where I made to in April 2016
Me leading down the 2nd rappel (first in the gully)
That overhung would be impossible to climb up…
The middle of the 3 rappels in the gully
Me leading down the final rappel, using a station that we built
Francis finishing the final (4th) rappel of the day
Down-climbing steep snow to avoid choss for as much as possible
Pyroclastic Peak in its full glory, still waiting for the third ascent…
A review shot of the south face gullies of Mt. Cayley. Ugly mountain.
Another shot of Mt. Fee with Mt. Garibaldi behind, two very different volcanoes…
Descending the crest of the moraine choss
Rainbow Mountain in the distance
Behind a random spire is Ashlu Mountain
One last look at Pyroclastic Peak.
Triggering several tons just by walking…
Francis happy to be still alive and sound after completing Mt. Cayley climb
Powder Mountain which Alex and I skied in that spring trip
The forecast wasn’t incorrect. At least 3-4 thunderstorms, just not where we were
Plodding back across the flat glacier

The day was not finished yet as we still had to re-ascend that intermediate bump which is made of compact moraine choss. I had previously spotted an alternative route around the north side but we didn’t feel particular keen about the extra elevation loss and regain, so opted to embrace the choss following the exact same route that we took. That 5-m moraine step was indeed, very bad. Francis led it, almost fell but he kicked about 30 times for a few steps and made my life simpler. I only needed to kick about 10 times to reinforce them, but I also didn’t want to kick too hard to trigger additional slide above and damage them. The upper route was steep and exposed, but not as terrible as I thought. The mosquitoes were horrendous at where we ditched the gears, so we quickly stuffed them in and walked back to the previous pass to set up camp. There was no running water, but the source wasn’t far away and it’s Francis’ turn this time to grab the liquid for us. I got the tent set up and did the cooking. The sunset was amazing but thank to the mosquitoes we didn’t stay long outside.

We weren’t looking forward to re-ascend that bump, but we had to…
Francis about to lead up that moraine step. Needed over 30 kicks…
Steep and loose and a bit exposed…
Almost done with the choss, at last…
It’s sunset time just when we topped back out onto the intermediate bump
One last look at Mt. Fee on this day
Descending from the intermediate bump to search for a camp spot
Massive thunderstorms to the north…
Cooking with zillions of mosquitoes..
Evening horizon behind Ashlu-Elaho Divide
Francis and our camp
The tent with Cayley S1 behind
Mt. Wood and Mt. Charlie-Charlie on the skyline

The following morning we slept in till 8:30am until it was too hot to be in the tent anymore. About an hour later we were on the go again, roughly following the exact route that we took in the previous day. For that long traverse across the north side glacier we opted to use crampons to increase traction, even though they weren’t absolutely needed. Higher up I also took a slight variation to avoid the few steep steps that we descended, but didn’t end up finding a better way. Francis followed our original line and got back to Brandywine’s base faster than me. The rest of the descent using Brandywine’s standard route was uneventful and so was the drive-out. It was slow, but doable. I would not recommend doing Mt. Cayley in summer. For those with mixed climbing skills it’s probably best to climb in winter when the entire mountain, including the pinnacle is covered in snow and ice, but we are not mixed climbers. What we should have done is to do the approach and the climb to the base on snow, and climb only the summit pitch on dry rock. This would mean a timing at around “late spring”, from late May to early June. This still will involve one pitch of unprotectable mid 5th class on garbage rock. Otherwise it someone really wants a chossneering test piece then embrace it in late summer, without any snow, but mind you, it’s looser than the Goodsirs or the true summit of Black Tusk.

That glacial tarn in the morning of Day 2
Plodding back across the traversing glacier, with crampons this time
Linking up several cols and gullies
Mt. Fee. The south tower has been done, but without much of an account
Pykett Peak at center on Ashlu-Elaho Divide
The final photo of Mt. Fee, this time with Mt. Tantalus behind
Mt. Cayley, Pyroclastic Peak and Vulcan’s Thumb in one picture
Back to the base of Brandywine Mountain’s west face
Lots and lots of people coming up
Looking down into Brandywine Meadows with The Black Tusk behind
Plodding back down Brandywine’s trail
Down to the Brandywine Meadows

Below are some pictures from the April 2016 trip in which we climbed to the base of the pinnacle pre-dawn from a camp under Mt. Cayley’s east face. Earlier in that trip we climbed the North Tower of Mt. Fee and Powder Mountain.

Pyroclastic Peak before dawn
Pyroclastic Peak before dawn
From a flat spot along the ridge, looking upwards towards the south face
From a flat spot along the ridge, looking upwards towards the south face
The last few steps to the "summit"
The last few steps to the base of the pinnacle on the west face
Panorama from Mt. Cayley. Click to view large size.
Panorama from Mt. Cayley under the pinnacle. Click to view large size.
Mt. Garibaldi massif on the right horizon
Mt. Garibaldi massif on the right horizon
Pyroclastic Peak is such a sexy looking objective!
Pyroclastic Peak is such a sexy looking objective!
Alpenglow on the rugged Mt. Tantalus
Alpenglow on the rugged Mt. Tantalus
Alpenglow on Mt. Tinniswood by Clendinning Provincial Park
Alpenglow on Mt. Tinniswood by Clendinning Provincial Park
Alex down-climbing/traversing the upper west face
Alex down-climbing/traversing the upper west face
And then, dropping into the steeps on the south face
And then, dropping into the steeps on the south face
Pyroclastic Peak might have only 1 successful ascent to date
Pyroclastic Peak might have only 2 successful ascents to date
Another look at Mt. Cayley
Another look at Mt. Cayley
Our camp..
Our camp..
Skiing down the glacier.
Skiing down the glacier.
What's that for?! ...
What’s that for?! …