The Mohican River is formed in Ashland County, about 2 miles (3 km) southwest of Loudonville,DeLorme (1991). Ohio Atlas & Gazetteer. Yarmouth, Maine: DeLorme. ISBN 0-89933-233-1. by the confluence of the Black Fork and the Clear Fork. It then flows generally south-southeast through western Holmes and northeastern Knox Counties, past the community of Brinkhaven, into northwestern Coshocton County, where it joins the Kokosing River to form the Walhonding River. It collects the Lake Fork in Holmes County.