Mount Sill is one of the fourteeners of the Sierra Nevada in California. It is located in the Palisades, a group of striking rock peaks with a few small glaciers on their flanks. Mount Sill is located 0.6 miles (1 km) east of North Palisade, the high point of the group. The two peaks are connected by a high, rocky ridge, on the north side of which lies the Palisade Glacier. Mount Sill lies on the main Sierra Crest, but is at a point where the crest turns sharply, giving it particularly striking summit views.