4K St Mary Lake Glacier National Park Mountains Lake HD Wallpaper

A wide-angle view of St. Mary Lake in Glacier National Park, USA, under a clear blue sky. Jagged mountains rise on either side of the lake, with some snow-capped peaks visible in the distance. The calm water perfectly reflects the mountains and the sky, and a small island with trees sits in the middle of the lake. Evergreen trees and autumn foliage frame the foreground.