We caught a glimpse of the Thomas Viaduct from the highway, and decided to explore. The 1835 historical train crossing over the Patapsco Valley can be well viewed just beyond the ranger's station wit…Full review by 703BillB703
historically referred to as "The Thomas Viaduct At Relay Maryland" its built e.g. documented in the "Internet Archives" & a nice 175 Anniversary simulation. "Relay" on global map …
historically referred to as "The Thomas Viaduct At Relay Maryland" its built e.g. documented in the "Internet Archives" & a nice 175 Anniversary simulation. "Relay" on global map for this technological marvel ...
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