Van Duzen River
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The Van Duzen River is a river on the north coast of California. It is a major tributary of the Eel River and drains 429 square miles, mostly in Humboldt County, with a small portion in Trinity County. The river travels 63 miles from its headwaters on the west side of the North Coast Range to its confluence with the Eel River, about 14 miles upstream from the Pacific Ocean. The river's elevation is over 5,000 feet at its source and only 60 feet when it merges with the Eel River. The river has two forks in its upper reaches. The North Fork travels northwest until it reaches the small town of Dinsmore, where it starts flowing east. The South Fork, which also flows northwest, joins the North Fork a few miles later. The river flows roughly east from then on. It meets its largest tributary, Yager Creek, about 5 miles before it reaches the Eel River.
The primary land use in the watershed in timberland. Road construction and poor logging practices, particularly historical, have increased erosion, leading to excessive sediment buildup in the river and its tributaries. In addition, gravel mining, particularly at the confluence of the Van Duzen and Eel River, has increased erosion, affected channel alignment and may block fish migration.
About 26 percent of the land is owned by industrial timber companies. About 31 percent is privately owned, but not industrial, land used for timber production and ranches. Residential land makes up 26 percent and public land makes up 17 percent. Most of the public land is near the river's headwaters in Six Rivers National Forest.
