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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  20-Oct-2021 by George Owsiacki (GO)

Summary Help Help

NMI 104N11 Au11
Name CRACKER CREEK Mining Division Atlin
BCGS Map 104N074
Status Past Producer NTS Map 104N11W
Latitude 059º 44' 41'' UTM 08 (NAD 83)
Longitude 133º 15' 12'' Northing 6624275
Easting 598167
Commodities Gold Deposit Types C02 : Buried-channel placers
Tectonic Belt Intermontane Terrane Plutonic Rocks, Cache Creek
Capsule Geology

Cracker Creek is about 10 kilometres long and flows east-northeast with a steep descent for the final 3 kilometres into the north end of Surprise Lake. The main workings are just above the lower "canyon" and are about 32 kilometres northeast of the community of Atlin.

The creek is located entirely within the Late Cretaceous Surprise Lake batholith (Surprise Lake Plutonic Suite) which covers approximately 1100 square kilometres northeast of Atlin. The batholith is comprised primarily of alaskite which is a leucocratic granite with abundant orthoclase and microcline, subordinate quartz, and may or may not contain mafic minerals or plagioclase. This body has intruded into Upper Paleozoic volcanic and sedimentary rocks of the Cache Creek Complex. There are numerous mineral showings in the area immediately west of the creek.

Placer work on Cracker Creek began in 1909 with cursory prospecting until 1916. Underground development in search of old channels took place in 1917, 1932, and in 1933 when a pay streak was hit in overlying bedrock.

Bulletin 28 quotes production as:

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1941-1945 342.2 grams of gold

1916-1920 466.5 grams of gold

TOTAL 808.7 grams of gold

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In 1996, seismic refraction surveying was carried out over the upper part of Cracker Creek on behalf of Sisters Resources Ltd. A total of three lines were done with one spread per line resulting in a total length of 718 metres.

In 2017, Global Drilling Solutions on behalf of Zinex Mining Corporation conducted extensive geochemical sampling on the Ruby Creek property, as well as drilling and ground geophysics. Results from rock samples in proximity to the occurrence (less than 1 kilometre) were not significant (Assessment Report 37171). In 2018, Global carried out further geochemical sampling on the property.

In 2021, an airborne SkyTEM survey was conducted BY Stuhini Exploration on the Ruby Creek property, which revealed a number of regional trends across the property.

Bibliography
EMPR AR 1909-52; 1914-78; 1915-62; 1916-45; 1917-78; 1918-99; 1921-84; 1932-72; 1933-90; 1935-B28
EMPR ASS RPT 25331, 37171, 38256, 39553
EMPR BULL 1 (1933); 28; 94
EMPR MISC PUB (Stratigraphy of the Placers in Atlin, Placer Mining Camp, P.J. & W.M. Proudlock, 1976)
EMPR OF 1989-15; 1989-24; 1996-11
EMPR P 1984-2
EMPR PF (Black, J.M. (1953): Atlin Placer Camp, Unpublished Report, 116 pages)
EMPR PFD 810847, 810848, 673880
GSC MEM 307
GSC OF 864
GSC P 74-47

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