Room 56W is an original, square Chacoan room east of the Tower Kiva (Room 64W). It measures 5.7 x 6 m. Eleven strata were associated with 56W, including a Chacoan floor, roof-fall, feature fill, and trash deposits. Twenty-five features were found in 56W, mostly relating to construction or roofing activities. Other features included Chacoan doorways and hearths. Room 56W is located at the front of a suite of connected rooms and probably served as the primary living space in the suite. Tree-ring dates indicate construction during the initial period of Chacoan construction at Salmon Pueblo, around 1090.