Chinese Wall is a prominent escarpment in northwestern Montana along the Lewis and Clark Range in the Bob Marshall Wilderness Area. Stretching about 15 miles north from Junction Mountain, it forms a long sheer face and one of the best-known landforms in this remote part of the Rockies. Geologically, it is a large cuesta with an east-facing cliff shaped by Pleistocene glaciers, rising roughly 700 to 1,300 feet above older rock layers. Part of the Continental Divide, it sends water toward either the Pacific or the Atlantic through the Gulf of Mexico. Despite its renown, it remains a remote backcountry destination reached mainly by multi-day travel.