Sheenjek River Professional Review and Guide
"Traversing a vast wilderness just south of the Arctic Divide, the Sheenjek offers an opportunity to experience several arctic ecosystems while paddling through a wild, remote region. The Sheenjek begins as a swift mountain stream, rising from glaciers on the southern flanks of the eastern Brooks Range, and flows south for more than 240 miles before emptying into the Porcupine River, 40 miles above Fort Yukon. The river ruts through precipitous mountains and alpine tundra, along a steep, shallow, braided channel with numerous rapids, riffles, and boulders in its upper reaches.
The high peaks of the Romanzof Mountains rise dramatically from the valley floor. Hiking opportunities are excellent. Although the Sheenjek has glacial origins, it is generally clearwater (due to its many clearwater tributaries), except after breakup and summer rains. Aufeis often covers the upper river until late summer."