Potomac River crossings and mountain ridges define this borderland region where Frederick County, Maryland, meets Loudoun County, Virginia. The landscape is dominated by the steep slopes of Catoctin Mtn and Furnace Mtn, framing the river valley. A significant corridor of transportation history runs along the Maryland shore, where the Chesapeake and Ohio Canal National Historical Park follows the riverbank, featuring the Catoctin Creek Aqueduct.
163 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1884 · Harpers Ferry
USGS Topo · 1:125,000
1891 · Harpers Ferry
USGS Topo · 1:125,000
1893 · Frederick
USGS Topo · 1:125,000
1893 · Harpers Ferry
USGS Topo · 1:125,000
1894 · Frederick
USGS Topo · 1:125,000
1908 · Middletown
USGS Topo · 1:48,000
1908 · Seneca
USGS Topo · 1:62,500
1908 · Ijamsville
USGS Topo · 1:62,500
1909 · Ijamsville
USGS Topo · 1:62,500
1910 · Antietam
USGS Topo · 1:62,500