Topper's Mountain is named after brothers Edward and William Topper, who were employees of George Jr and Alwyn Wyndham (sons of George Wyndham, founder of Wyndham Estate). They previously owned ‘New Valley Station', which included the present day ‘Topper's Mountain'. These days, Topper's Mountain is owned by Mark Kirkby. Planting began in the spring of 2000, with the ultimate fruit salad trial of 15 rows each of innumerable varieties and clones. The total area planted was made up of 28 separate plantings, many of these with only 200 vines in a block. As varieties proved unsuited, they were grafted over to those that held the most promise. Thus far, Gewurztraminer and Sauvignon Blanc hold most promise among the white wines, the Mediterranean reds doing better than their French cousins. The original 28 varieties are now down to 16; chardonnay, gewurztraminer, sauvignon blanc, tempranillo, shiraz and merlot are the commercial varieties, the remainder in the fruit salad block still under evaluation. In February 2019 90% of the vineyard was destroyed by a bushfire hours before harvest was due to begin. Exports to Germany.