found: Work cat.: Schipper, A.M. Species and sub-species recognition in the North American beaver, 1999:leaf 40 map (Manastash Creek)
found: Wash. place names database, Jan. 23, 2008(Manastash Creek rises near Frost Mountain in south central Kittitas County and flows two dozen miles east to the Yakima River west of Ellensburg. The present name is a corruption of Mnas-A-Tas, under which title the creek was mapped by A. W. Tinkham in 1854. Early railroad surveyors mapped it as the Ptehnum River)
found: Cushman, C.D. Geology and sedimentary petrology of the Taneum/Manastash Creeks area, Kittitas County, Washington, 1984.
found: Geological Survey (U.S.) Manastash Creek quadrangle, Washington, 1984.
found: GNIS, Jan. 24, 2008(Feature ID: 1522671; Name: Manastash Creek; Kittitas County; stream; Lat: 46°59ʹ38ʺN 120°34ʹ50ʺW )
