Mount Adolph Knopf is a 6,200-foot-elevation (1,890-meter) glaciated mountain summit located in the Boundary Ranges of the Coast Mountains, in the U.S. state of Alaska. It is situated 28 miles (45 km) north-northwest of Juneau to the western side of the Juneau Icefield, on land managed by Tongass National Forest. Topographic relief is significant as the summit rises 2,200 feet (670 m) above the Eagle Glacier in 0.5 mi (0.80 km) and 3,800 feet (1,158 m) above the Thiel Glacier in 1.25 mi (2.01 km). Precipitation runoff from the mountain's slopes drains to Lynn Canal.