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Contributed by Yale Peabody Museum of Natural History.
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Transcription
Douglas County
1948
Johnson clay mine at Castle Rock
Co H.G. Johnson Co, Castle Rock
Mgr Stroud Weisenhunt, Castle Rock
prod 18,460 T plastic clay.
CHS
Hogback Mine, at Waterton
Co Slocum Bros, Littleton
Mgr Robinson Brick Co, 500 Santa Fe, Denver
plant noperate 1948
El Paso County
Necla Clay Mine, at Atwood
Co Standard Fireclay Co, Box 65H, Pueblo
Mys R.F. Barber: Rte 3, Colo. Spgs.
prod 3450 T clay.
Jefferson County 1948
1 503 T clay + feldspar
2 14,312 T clay
3 3434 T fireclay
4 6957 T fireclay
5 4769 T clay
6 not given
7 " "
8 33,529 T plastic clay
9 20,234 T plastic clay
10 4688 T fireclay
Fremont County 1948
11 2500T clay
4