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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  27-Dec-89 by Laura L. Duffett(LLD)

Summary HelpHelp

NMI
Name BRIGHT, GRANBY NO. 2, CASSIDY, CANADIAN COLLERIES Mining Division Nanaimo
BCGS Map 092G001
Status Past Producer NTS Map 092G04W
Latitude 49º 03' 35" N UTM 10 (NAD 83)
Longitude 123º 53' 13" W Northing 5434474
Easting 435205
Commodities Coal Deposit Types A04 : Bituminous coal
Tectonic Belt Insular Terrane Overlap Assemblage
Capsule Geology

The Bright mine, located in Sections 1 and 2, Range 7, of the Cranberry District, is approximately 14.5 kilometres south of Nanaimo. Operations began in April 1950, with the intention of working the Douglas Seam immediately south of the old Granby No. 2 mine (092GSW051) workings. The Granby No.2 mine slope was dewatered and reopened, and formed the main slope of the Bright mine. The main slope was advanced 253 metres southeast of the old workings and a new No. 3 level was developed and advanced a total distance of 420 metres due east. Headings and counter levels driven from the No. 3 left level subdivided the area into a series of substantial pillars. Before extraction commenced the reserves were estimated at about 817,000 tonnes of coal.

The Douglas Seam, high volatile bituminous in rank, in the Bright mine is part of the Early Campanian Newcastle Member of the Upper Cretaceous Pender Formation, Nanaimo Group. The seam is variable and ranges up to 15 metres in thickness. The overlying strata consist of sandy shales, sandstones and conglomerates. The general structure of the area is synclinal, the old Granby workings are on the upper portion of the northern limb and the Bright mine workings are at the base. The dip of the seam in the Bright mine workings is generally less than 12 degrees.

Operations in 1953 were confined to the extraction of pillars. The Bright mine closed after being in production for only three years. The total production from the mine was 179,241 tonnes of excellent quality coal.

Bibliography
EMPR AR 1929-466; 1930-397; *1950-242,244,258-259; 1951-247,249,271;  1952-284,286,302; 1953-224,226,241; 1954-214
EMPR COAL ASS RPT 92
GSC MAP *42-1963; 1069A; 1386A
GSC MEM 51; 69
GSC OF 611
GSC P 47-22; 68-50; 69-25; 70-53; 89-4
Ditson, G.M. (1978): Metallogeny of the Vancouver-Hope Area,  British Columbia, M.Sc. Thesis, University of British Columbia

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