National Research Program

Yukon River Data Reports

Although the Yukon River is the fourth largest river system in North America, its remote location makes any in-depth investigation of it difficult. To overcome this difficulty, USGS scientists used a combination of sampling at five fixed stations and synoptic survey sampling to conduct a five-year water quality study of a 3000 km reach of the Yukon River from its headwaters in the Yukon Territory, Canada, to Pilot Station, Alaska near its mouth and just above tidal influence.

The following reports contain water-quality and sediment-quality data from samples collected in the Yukon River Basin during five water years (WY) at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and Porcupine Rivers). A broad range of physical, chemical, and biological analyses are presented:

The following reports contain water-quality and sediment-quality data, collected through intensive synoptic sampling, from the Yukon River and selected major tributaries in Alaska.

For additional information, contact Rob Striegl,

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