[6] The Chena River State Recreation Area surrounds much of the upper half of the main stem.
When closed, the dam impounds water and, when the inflow is high enough, diverts it about 8 miles (13 km) to the Tanana River near North Pole, upstream of Fairbanks and the natural mouth of the Chena.
[7] The Chena River supports populations of many fish species, including Arctic grayling, burbot, chum salmon, humpback whitefish, king salmon, least cisco, longnose suckers, northern pike, round whitefish, and sheefish.
In the 21st century, sport fishing for grayling, which grow in length to 18 inches (46 cm) in the upper river, is limited to catch and release.
[3] Dangers on the North Fork include a much narrower channel than that of the main stem, possible logjams, overhanging vegetation, and shallows, any of which may require a portage.