State Highway 4, north of National Park
An engineering triumph on the North Island Main Trunk railway, where the line loops through a tunnel to to cross over itself. This geometry restricts the maximum gradient to 1 in 52, although there is a height change of 700 feet in 3.5 miles. The actual track length is 7 miles. The engineer was R W Holmes - the year 1898.
philip bnrown (phil_louisa@hotmail.com) comments:a great new café opened up there ,with awesome coffee and food ,also has great old photos of raurimu and spiral ,great place for lunch
and dinner
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