The Gettys-Black divide is the primary drainage divide of Cumberland Township, Adams County, Pennsylvania

Cumberland Township, Adams County, Pennsylvania

Cumberland Township is a township in Adams County, Pennsylvania, United States. The population was 5,718 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...

; extending from the mouth of Stevens Creek

Stevens Creek

Stevens Creek is a creek in Santa Clara County, California. The creek originates in the Santa Cruz Mountains on the western flank of Black Mountain in the Monte Bello Open Space Preserve, then flows southeasterly through the Stevens Creek County Park before turning northeast into Stevens Creek...

 southward past Samuel Gettys' 1761 tavern ~7 miles to the mouth of Plum Run

Plum Run (Rock Creek)

Plum Run is a Pennsylvania stream flowing southward from the Gettysburg Battlefield between the Gettys-Black Divide on the east and on the west, the drainage divide for Pitzer Run, Biesecker Run, Willoughby Run, and Marsh Creek...

 at the dam site for Robert Black's 1798 Mill. From a ridge within the Gettysburg borough

Gettysburg, Pennsylvania

Gettysburg is a borough that is the county seat, part of the Gettysburg Battlefield, and the eponym for the 1863 Battle of Gettysburg. The town hosts visitors to the Gettysburg National Military Park and has 3 institutions of higher learning: Lutheran Theological Seminary, Gettysburg College, and...

, the divide extends southward across several strategic features

Battle of Gettysburg

The Battle of Gettysburg , was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania. The battle with the largest number of casualties in the American Civil War, it is often described as the war's turning point. Union Maj. Gen. George Gordon Meade's Army of the Potomac...

 of the Gettysburg Battlefield

Gettysburg Battlefield

The Gettysburg Battlefield is the area of the July 1–3, 1863, military engagements of the Battle of Gettysburg within and around the borough of Gettysburg, Pennsylvania. Locations of military engagements extend from the 4 acre site of the first shot & at on the west of the borough, to East...

:

• Cemetery Hill
  Cemetery Hill
  Cemetery Hill is a Gettysburg Battlefield landform which had 1863 military engagements each day of the July 1–3 Battle of Gettysburg. The northernmost part of the Army of the Potomac defensive "fish-hook" line, the hill is gently sloped and provided a site for American Civil War artillery...
  
   (503 ft)
• Cemetery Ridge
  Cemetery Ridge
  Cemetery Ridge is a geographic feature in Gettysburg National Military Park south of the town of Gettysburg, Pennsylvania, that figured prominently in the Battle of Gettysburg, July 1 to July 3, 1863. It formed a primary defensive position for the Union Army during the battle, roughly the center of...
  
  , including the triple point for Plum R/Stevens Cr (west) & Rock Cr (east)
• Weikert Hill
• Little Round Top
  Little Round Top
  Little Round Top is the smaller of two rocky hills south of Gettysburg, Pennsylvania. It was the site of an unsuccessful assault by Confederate troops against the Union left flank on July 2, 1863, the second day of the Battle of Gettysburg....
  
  
• Big Round Top
  Big Round Top
  Big Round Top is a boulder-strewn hill notable as the topographic high point of the Gettysburg Battlefield and for 1863 American Civil War engagements for which Medals of Honor were awarded...
  
  

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.