In their newsletter 29 the Rimutaka Incline Railway has defined a route for a connecting line between their Maymorn base and the old Wairarapa Line route pre-1955 which connects to the Rimutaka Incline at Summit. An approximation of that route is shown in the map below (green).
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To the left in aqua can be seen the actual link route used during the construction of the Rimutaka Deviation in the early 1950s. The old main line runs across the bottom of the map also in aqua. The red line of course being the current main line route. The connecting route suggested by the heritage railway will be challenging as it crosses the side of a hill and therefore substantial earthworks will be needed to keep a constant or practical gradient.
