a junction with CR 38 (Brock–Cosmos Road), SR 118 enters the village of Rossburg, gaining the moniker of South Main Street for a block. SR 118 through Rossburg is a two-lane residential street running north–south through the village. Similar to Ansonia, SR 118 crosses over the North Fork of the Stillwater and leaves Rossburg. North of Rossburg, SR 118 returns to the rural region of Darke County, crossing several county routes before crossing the Wabash River. Just after crossing the Wabash River, the route passes the entrances to Eldora Speedway, a 1/2 mile clay oval race track owned by NASCAR driver Tony Stewart. After Eldora Speedway, SR 118 continues north through Allen Township, passing just east of the village of New Weston. In Allen Township, SR 118 reaches an intersection with SR 705 (Main Street), which serves as the main street through New Weston. The route continues north from SR 705 through Allen Township, bending northeast near Gibson Road and bypassing the village of Burkettsville. Along this northeastern stretch of SR 118, the route junctions with the eastern terminus of SR 319 (Mercer Darke County Line Road). After SR 319, SR 118 crosses the county line from Darke County to Mercer County and turns northward through the farmlands. Mercer County Now in Granville Township, SR 118 remains rural for several miles, before crossing an intersection with Beckman Avenue. At Beckman Avenue, SR 118 crosses into St. Henry, gaining the moniker of South Eastern Avenue, passing St. Henry High School and a junction with SR 119. SR 118 continues north through St. Henry, becoming a two-lane village street through the community, which the route leaves near Carthagena Road. Continuing north, the route crosses through the community of Pilothea, a small farming area north of St. Henry. About a mile north of Pilothea, SR 118 gains the name of South Second Street and crosses into the village of Coldwater. Through Coldwater, SR 118 is a two-lane residential street, reaching a junction with SR 219 (Main Street) in the center of the village. A block to the north, the route crosses a railroad line and leaves the village near Bell Road. SR 118 continues north through Jefferson Township as a two-lane residential and rural roadway. Several miles north of Coldwater, SR 118 reaches a junction with SR 29, where SR 118 and SR 29 become concurrent, turning westward for several blocks. After SR