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Open-File Report 2007–1390

Open-File Report 2007–1390

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Sampling Locations and Subbasin Characteristics

Due to size of the Tanana River basin, sampling was done over 3 years—water years 2004 to 2006. In 2004 and 2005, about 30 different sites on wadeable tributary streams to the Tanana River were sampled each year and 25 sites on the mainstem of the Tanana River were sampled in spring 2006 through the ice or open water by snow machine or helicopter (fig. 1, table 1 [at back of report]).

All sampling locations are in Alaska and altitudes range from 2,064 to 67 m above North American Vertical Datum of 1929 (NAVD29) (table 2). Subbasins areas range in size from 0.41 to 114,000 km2. Selected sampled subbasin characteristics are provided in table 2 (at back of report).

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