Two million tonnes of bituminous coal are mined each year from Stockton Plateau, New Zealand’s largest opencast mine. Most of the coal is exported for steelmaking—as is coal from Denniston, which lies beyond the top left corner of this photograph, taken in 1998. The peaks on the ridgeline at top centre are part of the Mt Augustus massif, where a remnant population of the eponymous land snail was discovered 20 years later. The entire ridge has now been flattened.