concord point lighthouse in havre de grace, maryland

1827 amaerican america american atlantic bay beacon beam beams boats built chesapeake clouds cloudy coast coastline concord day flag flagpole fog grace havre havredegrace historic history house landmark landmarks light lighthouse lighthouses lightkeeper lightkeepers maryland museum navigation north northern ocean oceans oldest overcast overlooks patriotic point positioning river safety sailing sea seacoast seacoasts seashore second sentinel shipping ships shipwrecks stars stone stonework stripes summer sunny susquehanna timfence travel warning weather window