Located 3.2 km (2 mi) W of Clifton and 6.4 km (4 mi) N of Skagway; in the Coast Mountains.
Named by E name refers to the rough outline of the letters "A" and "B" formed by the late snow on the flat face of the mountain.
Canyon City, Denver, Rocky Point,
Bays:Nahku Bay, Smugglers Cove, Taiya Inlet,
Capes:Dyea Point, Halutu Peninsula, Yakutania Point,
Cities:Dams:Lower Dewey Lake Forebay Dam, Lower Dewey Lake Number 1 Dam, Upper Dewey Lake Dam,
Glaciers:Denver Glacier, Irene Glacier, Laughton Glacier, Saussure Glacier, Schubee Glacier,
Lakes:Black Lake, Devils Punch Bowl, Goat Lake, Icy Lake, Lost Lake, Lower Dewey Lake, Pump House Lake, Summit Lake, Upper Dewey Lake,
Locales:Mine:Eight Mile Canyon Prospect, Inspiration Mine,
Mountains:A B Mountain, Boundary Peak 109, Mount Carmack, Mount Cleveland, Mount Clifford, Face Mountain, Mount Gollum, Mount Harding, Mount Hefty, Mount Hoffman, Porcupine Hill, Twin Dewey Peaks, Mount Van Wagenen, Mount Yeatman,
Parks:Klondike Gold Rush National Historical Park,
Mountain Passes:Peaks:Lactic Acid Peak, Mount Mordor, Nelson Tower,
Mountain Ranges:Ridges:Rivers:East Fork Skagway River, Nourse River, Skagway River, Taiya River, White Pass Fork Skagway River,
Streams:Burro Creek, Captain William Moore Creek, Dewey Creek, Johnson Creek, Kasidaya Creek, Nelson Creek, Porcupine Creek, Reid Creek, Snyder Creek, West Creek,
Routes:Chilkoot Trail, Dewey Lakes and Devils Punch Bowl, Lower Dewey Lake Loop Trail, Reid Falls Trail, Skyline Trail, Sturgill's Landing Trail,
Valleys:Ferebee Valley, Glacier Gorge, Warm Pass Valley,
Waterfalls: