Montana · Lewis and Clark County
Occurrence
Helena Pumicite Deposit
Lewis and Clark County, Montana, United States
Pumice
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USGS source ↗
Commodities
Primary
Pumice
Commodity type
N
Economic & production
Development status
Occurrence
Identification
Deposit ID
10124670
Region
NA
Data score
E
Coordinates
46.5855, -111.93008