Ecology and Conservation
The river is also known for its runs of salmon and steelhead maintained in part by hatcheries. In 1981 the United States Congress designated the entire river downstream from the Lewiston Dam to its mouth on the Klamath, as well as portions of the river's tributaries, as the Trinity Wild and Scenic River.
In 1828, the Jedediah Smith expedition was helped across the Trinity River by the Yurok and camped on the east side of the Trinity River. His clerk, Harrison G. Rogers wrote, "Mr. Smith purchases all the beaver furs he can from them", suggesting that beaver were then plentiful on the Trinity. Joseph Grinnell in his "Fur-bearing Mammals of California" noted a beaver specimen collected historically on the Klamath near its confluence with the Trinity River, and further cited a Fish and Game report of beaver from 1915-1917 at the mouth of the Klamath River near Requa, California.
Read more about this topic: Trinity River (California)
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