Tyler Forks originates at Shine Lake in the Township of Knight, south of Upson, Wisconsin. Shine Creek is joined by the outflow of O’Brien Lake and becomes Tyler Forks. As the low volume river flows north, west, and then southwest toward Mellen it receives the waters of tributary creeks such as Mead, Erickson, Rouse, Dunn and Javorsky. Finally, Tyler joins the Bad River within Copper Falls State Park. The Bad ultimately flows to Lake Superior through the Bad River Indian Reservation and Odanah, Wisconsin.
Bad River Watershed Association volunteers sample two sites along this river. In all, volunteers sample 17 sites throughout the entire Bad River Watershed. Sampling includes monthly water chemistry monitoring and twice-annual macroinvertebrate monitoring.