Keywords: Hog Creek Marsh historical marker.jpg 40 46 34 2 N 83 43 29 6 W Roadside view of the Hog Creek Marsh historical marker located on the southern side of w Ohio State Route 81 State Route 81 east of the County Road 95 intersection in Washington Township Hardin County Ohio Washington Township Hardin County Ohio Hardin County Ohio United States own 2012-12-17 User Nyttend Nyttend No<nowiki></nowiki>ne Historical markers in Ohio Ohio State Route 81 Washington Township Hardin County Ohio Scenery pictures by User Nyttend |