including photo from 2006, at Maryland Historical Trust Baltimore & Ohio Railroad, Point of Rocks Station, Near State Route28, Point of Rocks, Frederick
Reference. Maryland State Highway Administration. December 31, 2014. Anne Arundel County (PDF) 维基共享资源上的相关多媒体资源:97号州际公路 DCRoads: Interstate 97 (Maryland)(页面存档备份,存于互联网档案馆)