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Piper, A.M.

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Album caption: Nehalem Falls damsite viewed upstream from the road bridge. Oregon. 1937. ( photo by A. M. Piper ) Published as figure 8 in U. S. Geological Survey. Water-supply paper 1610-C. 1965.
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Album caption: Concentrically Fractured columnar basalt at the Elsie damsite as viewed from the left bank. Clatsop County, Oregon. 1937. ( photo by A. M. Piper ) Published as figure 4 in U. S. Geological Survey. Water-supply paper 1610-C. 1965.
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Album caption: Basalt rubble in highway cut along the flank of the left abutment at the Elsie damsite. Clatsop County, Oregon. 1937. (Photo by A. M. Piper) Published as figure 5 in U. S. Geological Survey. Water-supply paper 1610-C. 1965.
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Album caption: Slide in fragmental basalt and shale in highway cut 0.6 mile east of the Elsie damsite. Clatsop County, Oregon. 1937. (Photo by A.M. Piper) Published as figure 6 in U. S. Geological Survey. Water-supply paper 1610-C. 1965.
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