Etheridge railway line
The railway stations at Mount Surprise, Einasleigh and Forsayth and the route of the Etheridge Railway between Mount Surprise and Forsayth, including surviving railway buildings, rails, sidings, turning forks, loading banks, stone pitched bridges and culverts, stone cuttings, sandboxes, water tank, signage, and signals and points infrastructure, are important surviving evidence of the efforts of the Chillagoe Railway and Mines Company to supply copper ore to its smelters at Chillagoe.
Eaton Branch Railway
The Eaton Branch Railway began at "Eaton Junction", immediately to the south of Waltham-on-the-Wolds station. It curved leftwards to run north-west on an embankment, gaining height above the surrounding fields. It then crossed Green Lane on an overbridge. North of this bridge, the line curved to the north, still on an embankment. The Eastwell Branch left the line at the start of this curve, just north of Green Lane. It is probable that this was never used apart from a short section near to the junction used as a siding. Certainly by 1903 a narrow gauge line had been built on its formation by the Eastwell Iron Ore Company. The standard gauge siding was used to supply equipment to the quarrying company, whose narrow gauge line was extended to serve quarries at Eaton and Branston. All the ore from those quarries and those at Eastwell was taken via the narrow gauge line including a cable operated incline to sidings at the Great Northern and London and North Western Joint Line near Harby.