Heads at 573400N, 1521900W; flows NNE to join West Fork Twin Creek at Chiniak Bay, 14 mi SE of Kodiak, Kodiak I.
Local name reported in 1966 by the Alaska State Geographic Board.
Channel Rock, Cyane Rock, Discovery Rocks, Hutchinson Reef, Kalsin Reef, Kodiak Rock, Pinnacle Rock, Refuge Rock, Vasilief Rock, Williams Reef,
Bays:Brookers Lagoon, Chiniak Bay, Cook Bay, Crab Lagoon, Gibson Cove, Helen Bay, Isthmus Bay, Kalsin Bay, Kodiak Harbor, Middle Bay, Mill Bay, Monashka Bay, Pasagshak Bay, Saint Herman Bay, Saint Herman Harbor, Saint Paul Harbor, Shahafka Cove, Vera Bay,
Beaches:Capes:Broad Point, Cape Chiniak, Cape Greville, Chiniak Point, Cliff Point, Icehouse Point, Isthmus Point, Midway Point, Narrow Cape, Pasagshak Point, Pasagshak Point, Pony Point, Sawmill Point, Sequel Point, Spruce Cape,
Channels:Cities:Cliffs:Dams:Bettinger A Dam, Chiniak Satellite Tracking Station Dam, Lake Bettinger B Dam, Lake Bettinger C Dam, Lake Bettinger D Dam, Pillar Creek 2 Main Dam Dike C, Pillar Creek Dam Number 2 Dike A, Pillar Creek Dam Number 3, Pillar Creek Number 1 Upper Dam A, Pillar Creek Number 1 Upper Dam B, Pillar Creek Number 2 Dike B Dam, Stovers Dam, Upper Reservoir Dam,
Fictional Places:Hills:Islands:Bird Island, Chiniak Island, Cliff Island, Crooked Island, Gull Island, Hanin Rock, Holiday Island, Humpback Rock, Inner Humpback Rock, Isthmus Island, Jug Island, Kalsin Island, Kekur Island, Kulichkof Island, Long Island, Middle Island, Near Island, Popof Island, Puffin Island, Queer Island, Refuge Island, Rocky Islet, Round Island, Svitlak Island, Twin Islet, Ugak Island, Uski Island, Utesistoi Island, Viesoki Island, Woody Island, Zaimka Island,
Lakes:Abercrombie Lake, Barry Lagoon, Beaver Lake, Lake Bettinger, Bull Lake, Chiniak Lagoon, Chiniak Lake, Dark Lake, Dolgoi Lake, East Twin Lake, Elephant Lake, Hidden Lakes, Horseshoe Lake, Icehouse Lake, Island Lake, Jupiter Lake, Kalsin Pond, Lilly Lake, Long Lake, Lupin Lake, Mayflower Lake, Mission Lake, Neptune, Potatopatch Lake, Lake Rose Tead, Salt Lake, Saturn Lake, Sawmill Lake, Snag Lake, Southern Lake, Tanignak Lake, Twin Lakes, Lake Una, Uranus,
Locales:Mountains:Boyer Peak, Devils Prongs, Pillar Mountain, Shaft Peak, Slope Peak, Twin Peaks,
Pillars:Ridges:Rivers:Chiniak River, Olds River, Sacramento River,
Streams:Black Canyon Creek, East Fork Twin Creek, Frank Creek, Kalsin Creek, Mayflower Creek, Myrtle Creek, Pillar Creek, Roslyn Creek, Twin Creek, West Fork Twin Creek,
Routes:Boy Scout Trail, Near Island Trail,
Cities: