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Interstate 81 north - Maryland line to Union Township

After a 12-mile jaunt through Washington County, Maryland, Interstate 81 enters Antrim Township, Franklin County in the Commonwealth of Pennsylvania. Exit 1, for Pennsylvania Route 163 (Mason Dixon Road), is on the state line, just north of Hagerstown. Photo taken 08-05-2016.

The northbound exit 1 offramp. Photo taken 08-05-2016.

As the ensuing onramp merges in, a dynamic message sign lists travel times to points northward; these points are often in the Chambersburg or Harrisburg hubs. Photo taken 08-05-2016.

The borough of Greencastle is served by the next two exits. Photo taken 08-05-2016.