[Recto], uit: Oregon (Klamath County), Crater Lake National Park : topography / R.B. Marshall, chief geographer ; T.G. Gerdine, georgrapher in charge ; topography by Pearson Chapman

Annotatie geografische gegevens: Opname: 1908-1909

Marshall, R. B.; Gerdine, T. G.; Chapman, Pearson

1911

[Washington, D.C. : U.S. Geological Survey]

1:62 500

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