Center City East in Philadelphia in Philadelphia County, Pennsylvania — The American Northeast (Mid-Atlantic)
Mason-Dixon Survey
Photographed By Don Morfe, March 23, 2015
1. Mason-Dixon Survey Marker
Here, in 1763, the southernmost point of Philadelphia was determined as the starting point for the survey of one of the most important borders in the nation. Charles Mason and Jeremiah Dixon took scientific measurements of a degree of latitude, elevating professional surveying standards. The survey ended a land dispute begun by William Penn and Lord Baltimore. Western Pa. Indian wars and severe weather delayed completion of the line until 1768.Erected 2013 by Pennsylvania Historical & Museum Commission.
Topics and series. This historical marker is listed in these topic lists: Colonial Era • Exploration • Government & Politics • Science & Medicine. In addition, it is included in the Pennsylvania Historical and Museum Commission series list. A significant historical year for this entry is 1763.
Location. 39° 56.453′ N, 75° 8.621′ W. Marker is in Philadelphia, Pennsylvania, in Philadelphia County. It is in Center City East. Marker is at the intersection of Front Street and South Street on Front Street. Touch for map. Marker
this page online
Other nearby markers. At least 8 other markers are within walking distance of this marker. Stephen Decatur (a few steps from this marker); Robert Smith (about 600 feet away, measured in a direct line); Queen Village / The New Market and Head House (about 700 feet away); U.S.S. United States (about 800 feet away); Society Hill / The New Market and Head House (approx. 0.2 miles away); POW★MIA (approx. 0.2 miles away); Tồ Quốc Ghi O'n (approx. 0.2 miles away); Tracings from the National Vietnam Veterans Memorial (approx. 0.2 miles away). Touch for a list and map of all markers in Philadelphia.
Photographed By Don Morfe, March 23, 2015
2. Mason-Dixon Survey Marker
Credits. This page was last revised on February 2, 2023. It was originally submitted on March 28, 2015, by Don Morfe of Baltimore, Maryland. This page has been viewed 716 times since then and 118 times this year. Photos: 1, 2. submitted on March 28, 2015, by Don Morfe of Baltimore, Maryland. • Bill Pfingsten was the editor who published this page.
