of the most acclaimed, the region’s diversity of soil types offer optimal conditions for a myriad of grape varieties, Margaret River is the major geographical indication wine region in southwest Western Australia, with 5,840 hectares under vine and 215 wineries as at 2012.

[1] Margaret River wine region is made up predominantly of boutique size wine producers; although winery operations range from the smallest crushing 3.5 tonne per year to the largest around 2,500 tonne.

The climate of Margaret River is more strongly maritime-influenced than any other major Australian region.

The low diurnal and seasonal temperature range means an unusually even accumulation of warmth.

[3][7] There are no official Margaret River subregions, although in 1999 viticultural scientist Dr John Gladstones presented a paper suggesting there should be six subregions based on climate and soil differences namely: Yallingup, Carbunup, Wilyabrup, Treeton, Wallcliffe and Karridale.