The Jordan River is a stream, about 51 miles (82 km) long, in the U.S. state of Utah. Regulated by pumps at its headwaters at Utah Lake, it flows northward through the Salt Lake Valley and empties into the Great Salt Lake. Four of Utah's five largest cities—Salt Lake City, West Valley City, West Jordan and Sandy—border the river. More than a million people live in the Jordan Subbasin, which is the part of the Jordan River watershed that lies within Salt Lake and Davis counties. During the Pleistocene, the area was part of Lake Bonneville. Members of the Desert Archaic Culture were the earliest known inhabitants of the region; an archaeological site found along the river dates back 3,000 years.
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