Pit of Silver Lake mine. Johnson County, Tennessee. 1918.
Dates
Date Taken
1918
Summary
Pit of Silver Lake mine, in terraced gravel, large cobble and boulders taken from gravel are heaped in piles on the floor of the pit. Johnson County, Tennessee. 1918. Plate 17-A in U.S. Geological Survey Bulletin 737. 1923.
Summary
Pit of Silver Lake mine, in terraced gravel, large cobble and boulders taken from gravel are heaped in piles on the floor of the pit. Johnson County, Tennessee. 1918. Plate 17-A in U.S. Geological Survey Bulletin 737. 1923.
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