"Solo trip, very long one(35km). Slopes on Warrior are steps like, pleasant to ascend, not much scree. Glacier has receded a lot in the last years and it’s very small now. Ridge connecting warrior and cordonnier has some exposure on it but scrambling is never hard. Moderate with exposure is the best to describe it in my opinion. Amazing views along the way. Steep scree slopes of alternate descent were probably the least pleasant part of this otherwise awesome trip." — PawelG • Jul 29, 2023

"Brendan and I took a rare free spot at Aster lake and a clear late season forecast to go climb Warrior and Cordonnier. Hidden lake is dried up, which made for easier travel than the dreaded Hidden Lake trail. We had great warm weather and clear skies. The glacier traverse to the col was easily travelled, we did not uncover any crevasses and there was ~10 cm making to good travel. The ridge line to Warrior was mostly snow-clear with only a few patches that could have bee avoided. The traverse to Cordonnier looked snow, but luckily the places that mattered were snow free. I am not sure I agree with the rating of EASY for the traverse, there are a fre spots with exposure, the step at the end of the first slab felt a bit sketchy in a no-fall zone, and there were a couple of very narrow ridge with so-so rock quality. I think Moderate is a more reasonable rating. We did the alternate descent, which had snow in the gully which helped. Joffre looked in not too bad shape, but the 'schrund would be an issue. The scramble alternative on the East ridge would be your best bet in these conditions. If I counted properly, Warrior was my 175th unique summit in AB, and Cordonnier my 50th Kane scr..." — apfelstrudel • Sep 25, 2021

"With warrior. Descended warrior and went back up cordonnier via standard descent to avoid the snowy, slabby connecting ridge. This route wasn't great, but got the job done " — mike_rogers81 • Aug 27, 2018

"CSMC Aster Lake trip. Day 1 was surprisingly smoke free and bagged Sarrail on approach into Aster Lake and was lured by Warrior and Cordonnier and so bagged them in the evening getting to Warrior right at sunset and descending off the glacier with headlamps. 16.5 hrs / 38 km / close to 3000m ascent." — alexjoseph • Aug 19, 2017

"Feli, Christine and I did this after Warrior. This one had more exposure than I cared for, but I pushed through it and we did it! All in all a great two-peak day with lots of glissading and some good views of Joffre!" — leigh-annewebster • Jul 22, 2017

"Kane list Cordonnier as a "easy scramble", but It has deadly exposure in a several spots. No room for error. Therefore, the "difficult" rating is more justified. On the day we did it, the exposed sections had lots of snow on and required extreme care." — Taras • Sep 10, 2015

"We left Calgary at 4:15am with the objective of tackling Cordonnier and Warrior that day near Aster Lake. And then attempting Joffre the following day. Initially we were supposed to try Woolley and Diadem but Jasper was calling for 60% showers so we switched the objective to an area that had a better weather forecast. We left the car parking lot of Upper K-Lakes towards Aster approx 615 am and setup camp at a bivy spot closer to Joffre so we wouldn't have to hike in as far for the early morning start. Hiked in 16 km to the bivy spot with heavy packs. Was raining in the parking lot when we left but cleared up a bit later in the day. We only bagged Cordonnier on this trip." — dkmountainman • Sep 16, 2011

"Traversed from Warrior on partly exposed ridge (similar to Lady MacDonald). Then back to col, down to Aster Lake and out to car. 12-1/2 hours round trip including Warrior. Led ACC trip with two other people. Took rope, harness, ice axe, crampons but didn't use. Ski poles only. Glacier looked safe, went around one crevasse." — KrisT • Aug 7, 1999