Hit the links at Emerald Lakes Golf Course or spend the weekends with friends and family at one of the area's public parks. Conveniently located near I-5 and Highway 99, Cornerstone is just 25 minutes from downtown Sacramento and 65 miles from the East Bay Area. Each energy-efficient home also comes standard with features that go beyond helping you save on utility bills-they allow your whole family to live better and breathe easier too.