Mine detail: Humphreys Pit

Previously called ''

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Location

Lat / long: 42.11421, -93.0874

Resource(N)

Primary: Sand and Gravel, Construction

Production

Operation type: Surface
Development status: Past Producer

Geology

References

MAS191270011
DEP10193505
Reference{Deposit:: IOWA ST HWY COMM AGGREGATE RESOURCE LISTING 1977}{Deposit:: USDA SOIL SURVEY OF MARSHALL COUNTY, IOWA 1981}
ReporterIgs / Ck