Geologic Map of the Portland Quadrangle, Multnomah and Washington Counties, Oregon, and Clark County, Washington

Authors=BEESON M.H., TOLAN T.L., MADIn I.P.

Journal/Book_names=GMS-75 (Geological Map Series)

pages=1 sheet

Publish_year=1991

Publisher=Department of Geology and Mineral Industries, State of Oregon

Language_of_Text=EN

note=大きさ（69 × 102 cm） ; 矩形範囲情報（左下緯度 = 45.5, 左下経度 = -122.75, 右上緯度 = 45.6333, 右上経度 = -122.6167）

ID=90024337