Margaret Powers No description specified. 1-5 (5 Records) Documents And It Grew (1969) Douglas Creek Gath Sys Pipeline Facilities (1978) Powers Figurine (1962) Prehistoric and Historic Resources of Westwater and Shumway Arroyos: (1980) Prehistoric and Historic Resources of Westwater and Shumway Arroyos: Survey of the San Juan Mine Coal Lease (1980)