Gettys-Black divide

The Gettys-Black divide is the primary drainage divide of Cumberland Township, Adams County, Pennsylvania; extending from the mouth of Stevens Creek southward past Samuel Gettys' 1761 tavern ~7 miles to the mouth of Plum Run at the dam site for Robert Black's 1798 Mill.^[1] From a ridge within the Gettysburg borough,^[specify] the divide extends southward across several strategic features of the Gettysburg Battlefield:

• Cemetery Hill (503 ft)^{[verification needed]}
• Cemetery Ridge, including the triple point for Plum R/Stevens Cr (west) & Rock Cr (east)
• Weikert Hill
• Little Round Top
• Big Round Top

Gettys-Black divide
The northern part of the divide is roughly along a Union line (blue) during the Battle of Gettysburg (the map inaccurately depicts Big Round Top west of Plum Run).
Highest point
Peak	Big Round Top, north slope [verification needed]
Elevation	[specify]
Coordinates	39°47′10.73″N 77°14′21.15″W
Naming
Etymology	Gettys Tavern & Black's Mill
Geography
Location	northern point (confluence of Stevens Cr/Rock Cr)
Country	United States
State	Pennsylvania
County	Adams
Range coordinates	39°50′12.77″N 77°13′17.5″W

The divide descends the east slope of Big Round Top and passes north of a drainage, then extends south-southeast across farm fields near the Taneytown Road to Rock Creek at the unincorporated community of Barlow, Pennsylvania.

References

1. Geiselman, John P. (1996). "Horner's Mill Becomes Barlow". In Cleveland, Linda K. (ed.). Reflections. Preface: Audrey J. Sanders. Columbus GA: Brentwood Christian Press. p. 55. Retrieved 2010-05-04.