Phase III Excavation Photographs, Site 18ST659, Naval Air Station Patuxent River (4 of 5)

Phase III excavations that took place at Site 18ST659 as part of the data recovery excavations at site 18ST659, VXX Presidential Helicopter Facility, Naval Air Station Patuxent River, St. Mary’s County, Maryland.本次在马里兰州圣玛丽斯县帕塔克森特河海军航空站VXX总统直升机设施内18ST659遗址（Site 18ST659）开展的第三阶段考古发掘，属于该遗址数据回收发掘工作的组成部分。