E of Unga I. in Sumagin Is., Aleutian Range
Popof is a Russian proper name, often written Popoff. Named Popovskoi by Captain Tebenkov (1852, map 24) Imperial Russian Navy (IRN), and by Russian Hydrographic Dept. Chart 1379, (1847); shown as Popof Island on an 1890 U.S. Bureau of Fisheries (USBF) chart.
Caton Shoal, Popof Reef, Unga Reef,
Bays:Baralof Bay, Ben Green Bight, Blind Breaker, Delarof Harbor, Fox Hole, Grosvold Bay, Humboldt Harbor, Korovin Bay, Lumber Bay, Mud Bay, Pirate Cove, Red Cove, Shoal Bay, Simeon Bay,
Beaches:Capes:Cross Cape, Danger Point, East Head, Hardscratch Point, Sand Point, Swedania Point, Unga Cape, West Head,
Channels:Korovin Strait, Popof Strait, Unga Strait,
Cliffs:Dark Cliffs, Popof Head, Wooly Head,
Dams:New England Fish Company Dam Sand Point, Squaw Harbor Dam,
Hills:Islands:Arch Rock, Cross Island, Egg Island, Egg Island, Elephant Rock, Halfway Rock, Henderson Island, High Island, Kelly Rock, Korovin Island, Little Egg Island, Popof Island, Range Island,
Mine:Mountains:Cities: