Backpacked into Lower Ice Lake Basin at 11,400 feet, hiked Vermilion the next day, then hiked out that same day. The hike from camp to Vermilion took me a little over 4 hours. The last couple hundred feet to Vermilion was a bit hairy, with a couple of steep, loose gullies. The last 20-foot walk to the summit was a narrow and exposed ridge.