Bryan Rock Products, Inc.

Minnesota-based producer of Red Ball Diamond Aggregate (RBDA), a finely crushed dolomitic limestone engineered specifically for baseball and softball infields. Mined in Shakopee, MN and used by universities, cities, parks, and school districts throughout the Upper Midwest and shipped nationwide. Known for excellent drainage, low maintenance, a firm-yet-forgiving playing surface, and the distinctive red color that makes ground balls easy to track.