Room 85W is an original Chacoan room located in the east section of the north block of Salmon Pueblo. It measures 5.8 x 3.6 m. The room was modified by the later San Juan occupants, with a dividing wall creating two room spaces (Rooms 85A and 85B). The room was excavated for about a week in 1974. Work was terminated when the unstable north wall created a dangerous situation. Four strata were associated with the room, all recorded in Room 85W, 85A, and 85B. These included post-occupational fill, roof-fall, and fill strata. Three features were identified in the room; doorways in the north, west, and south walls. Based on its location and architecture, Room 85W was part of the initial construction episode at Salmon in 1090.