National Geographic : 1936 Feb
ALPINE PEAKS AND PASTURES OF SOUTH ISLAND L) atlonal Lueograpt c society inlay rnotograpn Dy vv. 1iouern irUoor OTIRA GORGE IS THE ONLY BREAK IN SOUTH ISLAND'S MOUNTAIN BACKBONE Except for a road at the extreme northern tip, the highway and railway built through this narrow gash in the Alpine barrier are the only cross-island arteries. The railroad between Christchurch and Greymouth passes through a tunnel near here that is more than five miles long. These heavily wooded mountainsides, aflame in December and January with summertime flowering rata, are on the western side of the pass (see Plate XV); the eastern slopes are nearly barren.