Menominee River (Illinois) Mississippi River after crossing under U.S. Route 20. The river is part of the Driftless Area of Illinois and Wisconsin, a region that remained ice-free during the last ice age. Menominee River (Illinois) The Menominee River is an tributary of the Mississippi River, which it joins in Jo Daviess County, Illinois. The name "Menominee" refers to the Menominee, a Native American people. The name means "good seed" or "wild rice". The Menominee rises in Grant County, Wisconsin at the confluence of Louisburg and Kieler creeks one mile south of Kieler just east of U.S. Route 151 and flows south past
Muddy River (Nevada) to the Colorado River and followed it westward. In 1844, the expedition of John C. Frémont discovered a cutoff route that avoided the Colorado River, following a route between Resting Springs in California, and the Virgin River Valley that passed through Las Vegas Springs and crossed the Muddy River near modern Glendale. Mormon pioneers blazed a wagon road from Salt Lake City to Los Angeles along this pack trail in 1847, followed by Forty-niners attempting avoid the winter snows of the Sierra Nevada Mountains, and wagon trains of Mormon colonists on their way to settle in San Bernardino in 1852.