What is the length of the River which has Wild Horse Creek as a tributary ?
Wild Horse Creek (Wyoming) Wild Horse Creek is a tributary of the Powder River in Wyoming. The USGS has a station on the creek, near Arvada.
West Fork River The West Fork River is a principal tributary of the Monongahela River, 103 miles (166 km) long, in north-central West Virginia in the United States. Via the Monongahela and Ohio Rivers, it is part of the watershed of the Mississippi River, draining an area of 881 square miles (2,284 km²) on the unglaciated portion of the Allegheny Plateau.