Porters, is a commercial ski resort just over an hour's drive (98 km) west from Christchurch, in the South Island of New Zealand.

Porters wishes to grow the operation to a year round business and has plans to install zip lines, hot pools, mountain biking trails and hiking.

The Craigieburn Range is situated 85 km northwest of Christchurch and an equal distance from both the west and east coast of the South Island.

The geology and topography of the Craigieburn Range is typical of much of the eroded alpine land east of the Main Divide with folded indurated sandstones and siltstones forming rounded ridge tops.

Many of the slopes are still very active due to numerous shatter belts within the highly jointed bedrock resulting in the predominantly scree-covered terrain.

Although valley glaciations would have been extensive in the Late Pleistocene, most evidence of this has been severely modified due to fluvial erosion and talus deposition.

The second storm type involves a deepening depression that moves across central New Zealand to lie off the East Coast of the South Island.