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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Apr-2012 by George Owsiacki (GO)

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NMI 103P6 Au1
Name LAST CHANCE, TMS Mining Division Skeena
BCGS Map 103P043
Status Showing NTS Map 103P06W
Latitude 055º 24' 27'' UTM 09 (NAD 83)
Longitude 129º 25' 58'' Northing 6140224
Easting 472597
Commodities Gold, Silver, Lead Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Bowser Lake
Capsule Geology

The Last Chance showing is located approximately 9.0 kilometres southwest of Alice Arm on a tributary of the southwest branch of Lime Creek.

The region is underlain by Eocene Coast Plutonic Complex intrusive rocks intruding Middle Jurassic to Upper Cretaceous Bowser Lake Group argillite, shale, siltstone, greywacke and conglomerate. These sediments have been folded and contact metamorphosed to biotite hornfels.

The showing consists of a northeast trending, 1.2 to 1.5 metre wide quartz vein developed in sheared argillite. The vein is mineralized with galena, sphalerite and pyrite. A selected grab sample from a 6.1 metre long tunnel assayed 48 grams per tonne gold, 480 grams per tonne silver and 20 per cent lead (Minister of Mines Annual Report 1916, page 68).

In 1916, the Last Chance claims were owned by G.R. Naden, Bowers and J. Wells. At 754 metres elevation, a tunnel has been run for 6 metres in a northeast direction on a 1.2 metre vein. A cut above the tunnel exposes a well defined 1.5-metre vein.

Bibliography
EMPR AR *1916-K68; 1964-24-30
EMPR BULL 63
EMPR FIELDWORK 1988, pp. 233-240; 1990, pp. 235-243; 2005, pp. 1-4
EMPR MAP 8
EMPR ASS RPT 29106
EMPR OF 1986-2; 1994-14
GSC MAP 307A; 315A; 1385A
GSC MEM 175, p. 69
GSC OF 864; 3272

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