Information on Ross Stores in Columbia, MD 21046 Outlet Note Regular Brands Ross Stores Maryland Columbia 1702572 Rating 4.6 based on 104 votes Address 8640 Guilford Rd, #B90 Columbia, MD 21046 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. People Also Viewed