Big Sandy Mountain rises to 12,416 feet in Wyoming’s southern Wind River Range on the Continental Divide, near Dog Tooth Peak in an open alpine tundra landscape. It is commonly reached from Big Sandy Opening, a popular trailhead serving Big Sandy Lake, the mountain, and other destinations in the southern Winds. The area shifts sharply from the subarctic climate at Big Sandy Opening to tundra conditions near the summit. Known for its rugged scenery, this part of the range also demands caution, with hazards including bears, insects, wildfire, snow, cold nights, steep cliffs, and loose rock that have caused serious and fatal accidents over the years.