flows NW to Thumb Lake E of Katluk Lake, Kodiak I. 7.5 miles long.
Local name reported in 1954 by U.S. Geological Survey (USGS).
Alpine Cove, Amook Bay, Browns Lagoon, Larsen Bay, Uyak Bay, Zachar Bay,
Capes:Barbara Point, Bear Point, Bluff Point, Boulder Point, Grassy Point, Island Point, Long Point, Stony Point, Tent Point, Tree Point,
Dams:Larson Bay Cannery Dam, Uyak Cannery Dam,
Islands:Alf Island, Amook Island, Camp Island,
Lakes:Frazer Lake, Karluk Lake, O-Malley Lake, Thumb Lake,
Mountains:Grayback Mountain, Mount Shuman, Mount Strickland,
Rivers:East Fork Thumb River, North Fork Thumb River, O-Malley River, Thumb River,
Streams:Alder Creek, Bear Creek, Browns Lagoon, Canyon Creek, Cascade Creek, Cottonwood Creek, Eagle Creek, Falls Creek, Halfway Creek, Meadow Creek, Moraine Creek, Salmon Creek, Spring Creek,
Cities: