Erie Extension Canal
Route of travel and trade, Pittsburgh to Great Lakes, 1840-1871. The old canal bed may be seen here in Clarksville and for about four miles eastward along the road to Mercer.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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