In many places, electric interurban railways were the first to
string power-carrying wires outside the big cities. With electricity
so close, it was inevitable that towns along the line would request,
and purchase, power from the railways.
As this electricity distribution map from 1937 shows, the service grid
is perhaps the primary legacy of the interurbans. Even today power
lines follow many of the long-disused railways, then branch off along
spurs or state roads.
Regardless of which company had operated it at various times, this
tour follows the route from the Maryland city of Annapolis (bottom)
generally north to Baltimore (top) as traced by the blue green line.
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