Wilson-Conococheague, Maryland, a combination of the communities of Wilson and Conococheague
Conococheague Creek continues south into Maryland and enters the Potomac near Williamsport, where the Great Philadelphia Wagon Road crossed the river at William's Ferry, continuing on to Winchester, Virginia.
The Conococheague also forms dramatic, 100-foot cliffs along the Potomac River upstream of Shepherdstown, West Virginia (northwest of Harpers Ferry), where entrenched meanders expose mile-long sections of tilted Conococheague strata.