Mount Horrocks sits in Clare Valley, South Australia's premier cool-climate region in the Mount Lofty Ranges. The winery focuses on Riesling and Shiraz—grapes that thrive in the area's diurnal temperature swings and limestone soils. The Cordon Cut, a botrytis-affected Riesling, and the Alexander Vineyard Shiraz represent the winery's range across the region's signature varieties. The Watervale Riesling, named for the subregion, rounds out a portfolio rooted in Clare Valley's terroir. Wine Advocate, Wine Enthusiast, Wine Spectator, Decanter, and Falstaff have all assessed the winery's output, reflecting its standing among critics who track the region's producers.