Gaston County Of 245 W Catawba Ave Mount Holly, NC 28120 Phone : (704) 827-3581 Business Category Libraries Gaston County Of--24/7 Patron Account Information, Branch Libraries, Mt Holly Mount Holly, NC 28120 Phone : (704) 827-3581 Business Category Libraries Gaston County Of--library, Branch Libraries, Mt Holly Mount Holly, NC 28120 Phone : (704) 827-3581 Business Category Libraries Mt Holly Public Library 245 W Catawba Ave Mount Holly, NC 28120 Phone : (704) 827-3581 Business Category Libraries