In rural Ridgway, Colorado, what was once a dressage riding arena on a 230-acre equestrian ranch transformed into a 30,000-square-foot indoor cannabis cultivation in 2019. Two years later and a few hours north, Dalwhinnie Farms debuted a retail extension — a fancy, flagship boutique in Aspen. Dalwhinnie Farms is deliberately extravagant. It’s why the family-owned company chose Aspen over nearby Telluride. Known as one of America’s most affluent Zip codes, and notoriously as “Fat City,”…