Buller District is one of 53 districts of New Zealand, and is within the West Coast Region. It covers Westport, Karamea, Reefton and Inangahua Junction.

Reefton is a small town in the West Coast region of New Zealand, some 80 km northeast of Greymouth, in the Inangahua River valley. Ahaura is 44 km south-west of Reefton, Inangahua Junction is 34 km to the north, Maruia is 63 km to the east, and the Lewis Pass is 66 km to the south-east.