This week the Sepia Saturday prompt looks like some caves in the side of a mountain. I couldn't find any caves in my postcard collection but I found these cards showing a short train tunnel. Both postcard views show the same tunnel under the very busy High Street in Newburyport, Massachusetts. One photo is shot from the south looking north and the other is shot from the north looking south.
The second photo shows a track splitting off to the right. That track would have gone to the round house in Newburyport. Looking through the tunnel in the second photo one would have seen the depot that serviced Newburyport.
At some point, as you can see by the current photo, the tunnel was widened to provide for double track configuration. And as you can see, this portion of the once active Boston & Maine right-of-way is now a very active rail trail.
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