(Melvin Miller, 35', 1974, 35-11-A) across Tributary Clark Lake SW of Mechanicsburg, Union Township, Champaign County, OH. OH4 (Sandusky St.) SW about 4.5 miles from jct with OH29 (Main St.) in Mechanicsburg to the bridge (between OH54 & OH56). (03-2002, approximate) Photo by Mark Comstock.