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Contributed by Smithsonian Institution Archives.
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Transcription
9AH.1887
S3A1
1221.
A1 -- One-quarter (1/4) of a mile east of mouth of Silver Creek on the lake shore, forming a low cliff.
From lake line 573' to 600' +
Tones,
tight gray shale with band of black -
Silver Creek
1221/A1