We started at Echo Lakes and summited Pyramid Peak via Ropi Lake and the East Face Couloir. Anyone attempting this couloir immediately above and west of Ropi Lake should know that there is nothing even remotely like a trail, infact there's very little sand. It's boulder hoping for 2,000 vertical feet up and down. Not terribly difficult but a stumble would be very painful, the route is steep, and it's tedious (2 hrs both up and down). I'd even say the route is more class 3 with a class 4 move here and there in the middle of the couloir. Amazing view from on top though!