Mon 06/17, Tue 06/18, Thu 06/20, Fri 06/219:00 am - 3:00 pmNeedwood Mansion6700 Needwood RoadDerwood, MD, 20855Facility: Needwood Mansion Archaeology ClassroomMon 07/228:30 am - 3:30 amNeedwood Mansion6700 Needwood RoadDerwood, MD, 20855Facility: Needwood Mansion Archaeology ClassroomTue 07/23, Wed 07/24, Thu 07/25, Fri 07/268:30 am - 3:30 pmNeedwood Mansion6700 Needwood RoadDerwood, MD, 20855Facility: Needwood Mansion Archaeology Classroom