The Yentna River is a river in South Central Alaska

South Central Alaska

Southcentral Alaska is the portion of the U.S. state of Alaska consisting of the shorelines and uplands of the central Gulf of Alaska. Most of the population of the state lives in this region, concentrated in and around the city of Anchorage....

, formed by its East Fork and West Fork at 62°16′50"N 151°46′26"W, flows South-East to Susitna River

Susitna River

The Susitna River is a long river in the Southcentral Alaska. It is the 15th largest river in the United States of America, ranked by average discharge volume at its mouth. The river stretches from the Susitna Glacier to Cook Inlet....

, 30 miles (48.3 km) North-West of Anchorage, Alaska

Anchorage, Alaska

Anchorage is a unified home rule municipality in the southcentral part of the U.S. state of Alaska. It is the northernmost major city in the United States...

; Cook Inlet

Cook Inlet

Cook Inlet stretches from the Gulf of Alaska to Anchorage in south-central Alaska. Cook Inlet branches into the Knik Arm and Turnagain Arm at its northern end, almost surrounding Anchorage....

 Low.

History

Tanaina Indian name reported by Spurr (1900, p. 46), United States Geological Survey

United States Geological Survey

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

.
"Sometimes called Johnson River after the first white man to ascend it."

Watershed

It begins in the Mount Dall glacier system and flows southeast to the Susitna River

Susitna River

The Susitna River is a long river in the Southcentral Alaska. It is the 15th largest river in the United States of America, ranked by average discharge volume at its mouth. The river stretches from the Susitna Glacier to Cook Inlet....

 2 miles (3.2 km) north of Susitna

Susitna, Alaska

Susitna is a census-designated place in Matanuska-Susitna Borough, Alaska, United States. It is part of the Anchorage, Alaska Metropolitan Statistical Area...

. The river system (including upstream tributaries) is about 100 miles (160.9 km) long.

Tributaries

From mouth to source:

• Kahiltna River 61°51′11"N 150°46′46"W, Elevation: 75 feet (22.9 m)
• Bottle Creek (Yentna River) 61°57′49"N 151°4′44"W, Elevation: 125 feet (38.1 m)
• Skwentna River
  Skwentna River
  The Skwentna River is a river in the southwestern part of Matanuska-Susitna Borough, Alaska.-History:Tanaina Indian name reported in 1898 by Spurr , USGS, as "Skwent River."-Watershed:...
  
   61°59′8"N 151°8′23"W, Elevation: 125 feet (38.1 m)
• East Fork Yentna River 62°16′49"N 151°46′26"W, Elevation: 200 feet (61 m)
• West Fork Yentna River 62°16′49"N 151°46′26"W, Elevation: 200 feet (61 m)

Lake Creek just about 3 miles down river from Bottle Creek. Major fishing area kings,reds,silvers, Winter sports, hunting.