Marlborough is one of the regions of New Zealand, located in the northeast of the South Island. Marlborough is a unitary authority, both a region and a district, and its council is located at Blenheim. Marlborough is known for its dry climate, the picturesque Marlborough Sounds, and sauvignon blanc wine.
Marlborough's geography can be roughly divided into four sections. Two of these sections, in the south and the west, are mountainous. This is particularly true of the southern section, which rises to the peaks of the Kaikoura Ranges. These two mountainous regions are the final northern vestiges of the ranges that make up the Southern Alps, although that name is rarely applied to mountains this far north.