Fox River (Fish River tributary)
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Fox River (Ninaġvik in Inupiaq) is a waterway on the Seward Peninsula in the U.S. state of Alaska. It is 32 miles (51 km) from Solomon. The Fox flows eastward for 18 miles (29 km) before reaching the Fish River from the west.[1][2]
It heads about 20 miles (32 km) north of Topkok Head, and after flowing northeastward to the Niukluk lowland, turns southeastward and skirts the edge of the highland to its junction with Fish River. In the lower 10 miles (16 km) of its course, it has a very sinuous channel filled with sand and gravel bars, making the water shallow and navigation for small boats difficult. Above this portion, the valley narrows down and the river channel has nearly a straight course. The gradient of the valley from the head of the river to the mouth is very slight. Where the stream is confined by valley walls, its fall does not exceed 20 feet (6.1 m) to the mile, and below, where it crosses the lowland, the grade is probably less than 10 feet (3.0 m) to the mile. The valley of Fox River is broad, with the bed trenched from 50–100 feet (15–30 m) below the valley floor, leaving a system of benches. The river bed itself is a broad expanse of gravel and sand bars, not entirely covered by water. The bed rock consists of a series of light-gray chloritic micaceous schists, interbedded with which are limestone and graphitic schists. Sills and dikes of rather massive greenstone are very generally distributed along the creek. The alluvium includes pebbles derived from bed fock, light micaceous sands, and in some places quicksands.[3]
