Room 42W is an original Chacoan room located in the central portion of Salmon Pueblo. It measures 5.8 x 2.5 m. Two macaws were found in 2006 in a collapsed doorway between Room 42W and 33W (to the north). In addition, a doorway feature was identified, as well as two strata. Beyond this find, there are no photographic or documentary records available for this room.