From Cow Harbor to Sand City. The name Sand City Brewing Co. is a tribute to the industrial era of Northport. In the late 1800's and early 1900's, Northport was home to a number of sand mines. The most notable was Steers Sand & Gravel, who named part of Northport "Sand City." The sand mined at "Sand City" was brought to Manhattan to construct its streets, bridges, and buildings. They took something infinitesimally small and built greatness. Build great things. Drink great beer.