Mt. Oberlin (to the left of the waterfall) in Glacier National Park is an example of an arete. In the photo, we are looking towards the southeast. On the map, north is towards the top. The photo was taken from Going to the Sun Highway, shown in red on the map, where the camera is. The waterfall is labeled on the map, as is Mount Oberlin. On the map, the arete is shown by elongate closed contour lines, and the close spacing of these contour lines reveals the steep sides of the arete. This arete was shaped as two glaciers eroded away at opposite sides of Mount Oberlin. One glacier flowed along the current Logan Creek, and the other glacier flowed north along the unnamed stream where the waterfall is.