The Mason and Dixon Line Park is a small but educational park at the southernmost point of the Great Allegheny Passage in Pennsylvania.
Surveyed to settle a land dispute between two prominent English colonial families (the Penns and the Calverts), the Mason-Dixon line later became famous as the line between free and slave states prior to the Civil War.
Today this is a beautiful rest stop along the Great Allegheny Passage, a 150 mile rail trail between Cumberland, MD and Pittsburgh, PA.
How to Find the Mason and Dixon Line Park
The Mason and Dixon Line Park is located a mile south of the Big Savage Tunnel along the Great Allegheny Passage, at the Pennsylvania-Maryland border.
The closest trail head to the park in Pennsylvania is located at Deal in Somerset County, 4 miles north of the Mason-Dixon Line at GPS coordinates 39.76149, -78.93096.
From Deal you simply head south on the Great Allegheny Passage, where initially you’ll cross the Eastern Continental Divide one mile into your journey.
A mile south of the Eastern Continental Divide, you’ll come to the Big Savage Tunnel, which itself is more than half a mile long.
Exiting the tunnel, you’ll pass the Big Savage Overlook.
Finally, 4 miles south of Deal, you’ll reach the Mason and Dixon Line Park, at GPS coordinates 39.72287, -78.90284.
What You’ll See at the Mason and Dixon Line Park
There are several informational displays at the Mason and Dixon Line Park that help you understand not only the historical significance of the survey, but also how it was actually done.
A cast bronze marker plate with a replica survey-chain and Mason and Dixon’s signatures makes for a great “straddling the border” photo-op.
Granite “sitting blocks” that spell out “Mason & Dixon” are also Instagram-worthy.
The Mason and Dixon Line Park was dedicated on June 20, 2014, and is just one of many historically significant stops along the 150 mile Great Allegheny Passage.
If your hiking/biking to the Mason and Dixon Line Park from the PA side, you can’t help but pass through the 3,294 foot long Big Savage Tunnel.
The Big Savage Tunnel is is one of the structural marvels of Pennsylvania, opened in 1912 and abandoned in 1975.
The Salisbury Viaduct is another amazing engineering marvel along the Great Allegheny Passage, and is roughly 10 miles north of the Big Savage Tunnel.
The views from the Salisbury Viaduct are incredible, and for many folks this is one of the highlights of the entire 150 mile-long Great Allegheny Passage.
If mountain vistas are your thing, be sure to check out “The 14 Best Scenic Overlooks in the Laurel Highlands” for directions to ALL the best views in the area!
The Laurel Highlands are home to an incredible array of waterfalls – be sure to check out “23 Must-See Waterfalls in the Laurel Highlands” for directions to the best ones!
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