Foster Peak is a mountain summit located on the western border of Kootenay National Park. It is the highest point in the Vermilion Range, a sub-range of the Canadian Rockies of British Columbia, Canada. Its nearest higher peak is Mount Ball, to the northeast. The mountain is part of what is known as The Rockwall. Floe Lake, southeast of the peak, is one of the beauty spots of Kootenay National Park. The area is accessible via the Floe Lake Trail and Rockwall Trail. The Rockwall Trail is a scenic 55 kilometre (34 mile) traverse of alpine passes, subalpine meadows, hanging glaciers, and limestone cliffs, in some places in excess of 900 metres (2953 feet) above the trail.