The Twentymile River is a river near the

Kenai Peninsula The Kenai Peninsula ( Dena'ina: ''Yaghenen'') is a large peninsula jutting from the coast of Southcentral Alaska. The name Kenai (, ) is derived from the word "Kenaitze" or "Kenaitze Indian Tribe", the name of the Native Athabascan Alaskan tribe ...

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

. It rises in a remote valley from meltwater of several small glaciers in the

Chugach Mountains The Chugach Mountains of southern Alaska are the northernmost of the several mountain ranges that make up the Pacific Coast Ranges of the western edge of North America. The range is about long and wide, and extends from the Knik and Turnagain ...

and flows out into a large, wide valley where it receives the water of the Moraine and

Glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires dis ...

rivers. Eventually, the river empties into

Turnagain Arm Turnagain Arm ( Dena'ina: ''Tutl'uh'') is a waterway into the northwestern part of the Gulf of Alaska. It is one of two narrow branches at the north end of Cook Inlet, the other being Knik Arm. Turnagain is subject to climate extremes and large tid ...

after flowing to a broad marshy delta alongside the deltas of

Portage Creek Portage Creek is a census-designated place (CDP) in Dillingham Census Area, Alaska, United States. The population was 2 at the 2010 census, down from 36 at the 2000 census. Geography The Portage Creek CDP is located at (58.906088, -157.716758), ...

and the Placer River. Contrary to popular belief, the source of the river is not Twentymile Glacier.

References

Rivers of Alaska {{Alaska-river-stub