Mine detail: Vananda Deposit

Previously called 'Hallett Minerals Pit'

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Location

Lat / long:

46.38715, -107.0946

Resource(N)

Primary:	Bentonite
Ore:	Bentonite
Orebody form:	BLANKET

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Producer
First production started:	1967

Geology

Host rock:	Bearpaw Shale
Host type:	Shale
Structure:	Dip Generally Less Than 5 Deg., Numerous Faults Of Small Displacement
Tectonic:	Between Ingomar Anticline And Porcupine Dome
Alteration processes:	Volcanic Ash To Smectite

References

MRDS	W013400
DEP	10070457
Reference	{Deposit:: BERG, R. B., 1970, BENTONITE DEPOSITS IN THE INGOMAR - VANANDA AREA, TREASURE AND ROSEBUD COUNTIES, MONTANA: MONT. BUREAU OF MINES AND GEOL. SPEC. PUB. 51, 5 P}{Deposit:: 1969 GEOLMAP MBMG SP. 5}
Reporter	Berg, Richard B. (Krohn, D. H.)