Seminary Ridge is a dendritic ridge which was an area of Battle of Gettysburg engagements in July 1863 during the American Civil War (1861–1865), and of military installations during World War II (1941–1945). Geography Seminary Ridge is a northern portion of the drainage divide between the Marsh Creek Watershed on the west and the Rock Creek Watershed (east). At the south end of Oak Ridge (the northernmost portion of the divide), the north-south McPherson and Seminary ridges bifurcate southward at the triple watershed point of Willoughby's and Pitzer runs (southward tributaries of Marsh Creek) with a Rock Creek eastward tributary. From the triple point, Seminary Ridge extends southward to an area with eastward drainage into the Rock Cr tributary (Stevens Creek), with the borough of Gettysburg, and with the TBD. Farther south into the Gettysburg National Park, Seminary Ridge continues as far as a branch of Pitzer Run, which divides the ridgeline (), around which the drainage divide curves to the east. The ridgeline continues south of the branch, crossing the Millerstown Road. Between the Millerstown and Emmitsburg road crossings, the west side of the ridgeline is an elevated area (hornfel along the northwest edge of a diabase sheet) about 1 mile wide along the Emmitsburg Road. Along this east side of this elevated area, the ridgeline is Warfield Ridge, the southernmost portion of Seminary Ridge near the south end of the Gettysburg Battlefield. South of the tip of Seminary/Warfield Ridge tip, the Marsh/Rock creeks' drainage divide continues about 4 miles to near the Mason–Dixon line at their confluence to form the Monocacy River. The portion of Seminary Ridge on the western side of Gettysburg, Pennsylvania includes the railroad cut behind houses north of Buford Avenue and the historic Gettysburg Armory. Extending south are Schultz Woods, Spangler Woods, Berdan Woods, the McMillan Woods Youth Campground, Pitzer Woods, Biesecker's Woods, and the 1895 Longstreet Tower, which provides an observation platform for the "southern end" of Seminary Ridge (Warfield Ridge). The Eisenhower National Historic Site on the west of the ridge is visible from the tower. Seminary Ridge Avenue and the sections of West Confederate Avenue (northwest and southwest) generally extend along the landform's ridgeline and provide access to numerous battle monuments on the ridge, including the prominent Virginia Monument. Seminary Ridge is crossed by Buford and Springs avenues, as well as West Middle Street. South Seminary Ridge South Seminary Ridge is