The Pennsylvania Society of Land Surveyors (PSLS), a statewide professional organization, exists for the purpose of supporting, improving and enhancing the profession, its members, and the practice of land surveying. PSLS focuses on providing education, legislative involvement, enhancing public awareness, and the promulgation of the ethics of the profession.

EST. 1969

UPCOMING EVENTS
WEDNESDAY WEBINAR SERIES
Survey of the Mason and Dixon Line
July 9 |12PM-1PM ET
Presented by: Eric Gladhill, PLS
One of the greatest surveys of early colonial America took place to settle a land boundary dispute in the years between November 15, 1763, and September 11, 1768. The astronomers were sent over from the Greenwich Royal Observatory in England to perform the world’s first geodetic survey and set stones along the agreed-upon line of demarcation between the land grants from King Charles II to the Penns and Calverts. Recently, the Maryland Society of Surveyors (MSS) and the Pennsylvania Society of Land Surveyors (PSLS) formed a joint effort to assist the Maryland Geological Survey (MGS) to help inventory the remaining Mason and Dixon stones in order to have them placed on the National Historic Registry. This webinar will discuss the past and present of this historic line.
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Webinar Series Sponsor:
JULY 22-31, 2026
Summit Bechtel Reserve - West Virginia
Calling all licensed surveyors who want to make an impact on the next generation of surveyors!
The 2026 National Scout Jamboree will be held July 22-31, 2026 with participants on site during that time at the Summit Bechtel Reserve near Glen Jean, WV, and there will be a booth there to help scouts earn their Surveying Merit Badge. As presentations and workbooks for the scouts are being updated, we are searching for staff to help teach the badge.
