Trough Creek State Park is a 554 acres (224 ha) Pennsylvania state park in Cass, Penn and Todd Townships, Huntingdon County, Pennsylvania in the United States. The majority of the park is in Todd Township along Pennsylvania Route 994, east of the unincorporated village of Entriken. Huntingdon is the nearest borough. The park borders Rothrock State Forest and Raystown Lake National Recreation Area. There is a growing population of Bald Eagles at the lake. Fourteen eagles were spotted in January 2007.
This is up from two that were spotted in 1990, the first year that an eagle survey was taken.These three sections of state and federal owned property combine together to provide hunting, hiking and fishing opportunities for the outdoorsman.Trough Creek State Park was chosen by the Pennsylvania Department of Conservation and Natural Resources (DCNR) and its Bureau of Parks as one of "Twenty Must-See Pennsylvania State Parks".