The Thomas Viaduct and the surrounding terrain of the Patapsco River valley characterize this portion of Maryland just southwest of Arbutus. The landscape is a dense network of residential communities and critical infrastructure, where established settlements like Relay and Elkridge sit alongside 21st-century developments. The topography is defined by the winding river and its tributaries, including Deep Run and Stony Run, which have historically dictated the layout of transportation corridors and local boundaries.
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This is the sole edition of this map. No revisions or reprints were ever made.
1892 · Laurel
USGS Topo · 1:62,500
1892 · Ellicott
USGS Topo · 1:62,500
1894 · Ellicott
USGS Topo · 1:62,500
1894 · Laurel
USGS Topo · 1:62,500
1894 · Baltimore
USGS Topo · 1:62,500
1894 · Relay
USGS Topo · 1:62,500
1897 · Laurel
USGS Topo · 1:62,500
1899 · Baltimore
USGS Topo · 1:62,500
1904 · Baltimore
USGS Topo · 1:62,500
1906 · Ellicott
USGS Topo · 1:62,500