Curt Sumner will honor the legacy of land surveyor David Thoreau at the site of his grave in Massachusetts.

Jim Shomper talks like a star of “Law & Order.” With a booming voice and a knack for delivering one-liners, Shomper acts like a regular on the long-running television show.

 For the past several years, Shomper also has walked a beat as he helped search for the site of the Plumstead Huddle house, which Charles Mason and Jeremiah Dixon determined was the southernmost point in Philadelphia when they started their famous survey 250 years ago.  

Ceremony highlights surveyor’s legacy and 250^th anniversary of Mason-Dixon Line.

Attendees at the Surveyors Rendezvous in Philadelphia continued to celebrate the 250^th anniversary of the Mason-Dixon survey.

A look at the top headlines of the month.

History weighs on Chas Langelan.