Mine detail: Benbow Mine

Previously called 'Benbow Chromite Deposit'

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Location

Lat / long: 45.36412, -109.80689

Resource(M)

Primary: Chromium
Tertiary: Iron
Other material: Bronzite, Chromite, Enstatite, Forsterite, Olivine
Discovery year: 1918

Production

Operation type: Underground
Development status: Past Producer
First production started: 1941

Geology

References

MRDSMO60101
MAS300950004
DEP10197365
Reference{Deposit:: ANONYMOUS. CHROMIUM MATERIALS SURVEY. U.S. DEPT. COMMERCE,}{Deposit:: 1962, 96 PP.}{Deposit:: JACKSON, E.D. THE CHROMITE DEPOSITS OF THE STILLWATER SOM-}{Deposit:: PLEX, MONTANA. IN ORE DEPOSITS IN THE U.S., 1933-1967,}{Deposit:: (GRATON SALES), V. 2, NEW YORK, AIME, 1968, PP. 1495-1510.}{Deposit:: JONES, W.R., J.W. PEOPLES, AND A.L. HOWLAND. IGNEOUS AND}{Deposit:: TECTONIC STRUCTURE OF THE STILLWATER COMPLEX, MONTANA.}{Deposit:: U.S. GEOLOGICAL SURVEY BULL. 1071-H, 1960, PP. 281-340.}{Deposit:: PAGE, N.J., AND J.C. DOHRENWEND. MINERAL RESOURCE POTEN-}{Deposit:: TIAL OF THE STILLWATER COMPLEX AND ADJACENT ROCKS IN THE}{Deposit:: NORTHERN PART OF THE MT. WOOD AND MT. DOUGLAS QUADRANGLES,}{Deposit:: SOUTHWESTERN MONTANA. U.S. GEOLOGICAL SURVEY CIRC. 68H, 1973,}{Deposit:: 99 PP.}{Deposit:: PEOPLES, J.W., A.L. HOWLAND, W.R. JONES, AND D. FLINT.}{Deposit:: GEOLOGIC MAP, SECTIONS, AND UNDERGROUND WORKINGS OF THE}{Deposit:: MOUNTAIN VIEW LAKE AREA, STILLWATER COUNTY, MONTANA,}{Deposit:: U.S. GEOLOGICAL SURVEY OPEN FILE RPT., 1954, 2 MAPS, 8 SECTIONS}{Deposit:: WIMMLER, N.L. INVESTIGATION OF CHROMITE DEPOSITS OF THE}{Deposit:: STILLWATER COMPLEX, STILLWATER AND SWEETGRASS COUNTIES,}{Deposit:: MONTANA, U.S. BUR. OF MINES R.I. 4368, 1948, 41 PP.}{Deposit:: MCHUGH, E., 1994, MLA REPORT IN PREPARATION.}{Geology:: JACKSON, E.D., A.L. HOWLAND, J.W. PEOPLES, AND W.R. JONES.}{Geology:: GEOLOGICAL MAPS AND SECTIONS OF THE EASTERN PART OF}{Geology:: THE STILLWATER COMPLEX IN STILLWATER COUNTY, MONTANA. U.S.}{Geology:: GEOLOGICAL SURVEY OPEN FILE RPT., 1954, 3 MAPS, 14 SECTIONS.}{Geology:: HESS, H.H. STILLWATER IGNEOUS COMPLEX, MONTANA. GEOL. SOC.}{Geology:: AMER. MEM. 80, 1966, 230 PP.}{Geology:: JACKSON, E.D. PRIMARY TEXTURES AND MINERAL ASSOCIATIONS IN}{Geology:: THE ULTRAMAFIC ZONE OF THE STILLWATER COMPLEX, MONTANA.}{Geology:: U.S. GEOLOGICAL SURVEY PROF. PAPER 358, 1961, 106 PP.}{Geology:: JACKSON, E.D. STRATIGRAPHIC AND LATERAL VARIATION OF CHRO-}{Geology:: MITE COMPOSITION IN THE STILLWATER COMPLEX. MIN. SOC.}{Geology:: AMER. SPEC. PAPER 1, 1963, PP. 46-54.}{Production:: BOERICKE, F.S. AND W.M. BANGERT. EFFECT OF VARIABLES IN}{Production:: CHEMICAL BENEFICIATION OF CHROMITE ORES. U.S. BUR OF MINES}{Production:: R.I. 3817, 1945, 26 PP.}{Production:: HUNTER, WILLARD L. AND LLOYD H. BANNING. PYROMETALLURGICAL}{Production:: BENEFICIATION OF OFF-GRADE CHROMITE AND PRODUCTION OF FER-}{Production:: ROCHROMIUM. U.S. BUR OF MINES R.I. 6010, 1962, 16 PP.}{Production:: SULLIVAN, G.V. AND W.A. STICKNEY. FLOTATION OF PACIFIC}{Production:: NORTHWEST CHROMITE ORES. U.S. BUR OF MINES R.I. 5646, 1960}{Production:: 14 PP.}{Production:: SULLIVAN, G.V. AND G.F. WORKENTINE. BENEFICATING LOW-}{Production:: GRADE CHROMITES FROM THE STILLWATER COMPLEX, MONTANA. U.S.}{Production:: BUR OF MINES R.I. 6448. 1964, 29 PP.}{Reserve-Resource:: PEOPLES, J.W., AND A.L. HOWLAND. CHROMITE DEPOSITS OF THE}{Reserve-Resource:: EASTERN PART OF THE STILLWATER COMPLEX, STILLWATER COUNTY,}{Reserve-Resource:: MONTANA. U.S. GEOLOGICAL SURVEY BULL. 922-N, 1940, PP. 371-416.}{Reserve-Resource:: SCHAFER, P.A. CHROMITE DEPOSITS OF MONTANA. MONTANA BUR. OF}{Reserve-Resource:: MINES AND GEOL. MEM. 18, 1937, 35 PP.}
ReporterSpear, James M.