Log Category of Documents:
Overlay, scale 1/50,000, undated, prepared by Dang Vân Trung of A9 ((possibly 9th Squad)), shows the terrain features of an unspecified area ((possibly in Bien Hoa Province)) covering Rach ((River)) Vop, Aom Dong and Cai Con; An Lạc Tây, Phên Den, An Bình, Ba Trinh, Gái Tràng and Phong Thôi areas; and Con ((Dune)) Anh. Symbols indicating locations of civilian houses, an unspecified road and river, and arrows depicting troop movements are also shown on the map.