Conodoguinet Creek winds through the northern valleys of this Franklin County landscape, passing the small community of Roxbury and the recreational grounds of Holiness Camp and Camp Johnson. The terrain is defined by the sharp ridges of Blue Mountain and Timmons Mountain, which enclose the agricultural basins of Horse Valley and Gunter Valley. A significant portion of the southern geography is occupied by an intricate network of specialized roads, including Missile Rd, Tracer Rd, and Rocket Rd, alongside avenues named for various states. This distinctive infrastructure borders the traditional crossroads of Upper Strasburg and Pleasant Hall. The drainage system is equally complex, featuring Letterkenny Reservoir and numerous runs such as Lehman Run and Keasey Run that feed the local watershed. Further south, the settlements of Maple Grove and Keefers mark the transition toward more residential layouts, providing a clear view of the area's twentieth-century evolution.
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1900 · Mercersburg
USGS Topo · 1:62,500
1902 · Chambersburg
USGS Topo · 1:62,500
1902 · Mercersburg
USGS Topo · 1:62,500
1923 · Shippensburg
USGS Topo · 1:62,500
1939 · Orbisonia
USGS Topo · 1:62,500
1940 · Orbisonia
USGS Topo · 1:62,500
1942 · Hagerstown
USGS Topo · 1:125,000
1943 · Hagerstown
USGS Topo · 1:125,000
1943 · Chambersburg
USGS Topo · 1:62,500
1943 · Mercersburg
USGS Topo · 1:62,500