Weikert Hill

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)
Elevation
Coordinates	39°47′10.73″N 77°14′21.15″W / 39.7863139°N 77.2392083°W / 39.7863139; -77.2392083
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 / 39.8368806°N 77.221528°W / 39.8368806; -77.221528Coordinates: 39°50′12.77″N 77°13′17.5″W / 39.8368806°N 77.221528°W / 39.8368806; -77.221528

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. From a ridge within the Gettysburg borough, the divide extends southward across several strategic features of the Gettysburg Battlefield:

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 .