The Scott River is a 60-mile-long river in Siskiyou County, California, United States. It is a tributary of the Klamath River, one of the largest rivers in California. Historically, fur trappers called the river the Beaver River, before the Hudson's Bay Company nearly extirpated beaver from the area in the early 19th century. Scott Valley was first entered Step…The Scott River is a 60-mile-long river in Siskiyou County, California, United States. It is a tributary of the Klamath River, one of the largest rivers in California. Historically, fur trappers called the river the Beaver River, before the Hudson's Bay Company nearly extirpated beaver from the area in the early 19th century. Scott Valley was first entered Stephen Meek, Thomas McKay, George Adolphus Duzel and 16 other Hudson's Bay trappers in 1836. In 1850 alone, Meek reportedly trapped 1,800 beaver in Scott Valley, which was then known as Beaver Valley. Meek, who had hunted all over the West, declared the Beaver Valley one of the best places he had ever seen to trap beaver and hunt game, and returned to retire there at the Josiah Doll ranch from 1871 until his death in 1889 at the age of 90. The 1850 discovery of gold during the California Gold Rush by pioneer John W. Scott at Scott Bar, downriver from Scott Valley, brought many prospectors into the area; Scott's discovery led to the naming of the valley and the river in his honor.