History;
The Northampton to Market Harborough line opened in 1859 and had tunnels at Great Oxendon and nearby Kelmarsh. The original tunnel was single-track (422M), and when the line was doubled a second single-track tunnel was built. The second tunnel had an airshaft, and is now a cycle path all the way to Northampton. The line closed in 1981.
It was a good day out, explored with JuJu, Stranton and The Wombat
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Cheers for Looking