On Kuiu I., at S end of Tebenkof Bay, Alex. Arch.
HistoryNamed in 1928 by U.S. Coast and Geodetic Survey (USC&GS) for Ivan Petroff, special census agent for Alaska in 1880, "who contributed largely to the written history of Alaska."
Port Beauclerc, Port Malmesbury, Alvin Bay, Bay of Pillars, Bear Harbor, Elena Bay, Explorer Basin, Gedney Harbor, Happy Cove, Louise Cove, No Name Bay, Orel Anchorage, Petrof Bay, Piledriver Cove, Reid Bay, Seclusion Harbor, Shelter Cove, Tebenkof Bay, Thetis Bay,
Capes:Point Amelius, Elena Point, Gap Point, Lisa Point, Swaine Point, Troller Point,
Channels:Islands:Beauclerc Island, Davis Rock, East Island, Edwards Island, Kuiu Island, Step Island, Troller Islands, Windfall Islands,
Lakes:Alecks Lake, Kutlaku Lake, Salt Lagoon,
Mountains:Beauclerc Peak, Green Mountain, North Mountain, White Mountain,
Pillars:Streams: