General Information
Secondary Commodities: coal
Deposit Type(s): Coal
Location(s): 61.298610 N, -135.91 W
NTS Mapsheet(s): 105E05
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
The GSC reported that coal occurs in gopher holes on the south slope of Corduroy Mountain. The area was explored in 1970 and 1971, while it was held as Coal Exploration Licence 12 by Teslin Exploration Ltd which carried out reconaissance mapping and prospecting.
In Oct/92, Cash Resources Ltd aquired twenty-two Territorial Coal Licences, includind Licence Y 408 which encompasses the Corduroy Mountain area. Cash carried out trenching on the west side of Corduroy Mountain in 1997. In Nov/98, Cash entered into an option agreement with Usibelli Coal Mine Inc of Healy, Alaska allowing the company to acquire a 50% interest in the Division Mountain Project subject to certain work conditions. The Division Mountain Project encompasses coal mining rights to the Division Mountain deposit (Minfile Occurrence # 115H 013) and coal exploration rights to the surrounding area under various Coal Exploration Licences. In Mar/99 Usibelli carried out reverse circulation drilling of 5 holes (478.5 m) to test the extent of the coal seams discovered during trenching in 1997. Down-hole geophysical logging was also completed on 2 of the holes. In May/99 Usibelli dropped its option, due to low world prices for thermal coal.
In May/2001, Cash Resources Ltd was renamed Cash Minerals Ltd.
Capsule Geology
The area is underlain by the Upper Jurassic to Lower Cretaceous Tantalus Formation (Upper Member) conglomerate and sandstone, near the contact with underlying Upper Jurrasic Laberge Group rocks consisting of sandstone, siltstone, carbonaceous shales and coal seams of the Tanglefoot Formation (Upper Member). Trenching by Cash Resources in 1997, 4.25 km northwest of the float occurrence, uncovered 23 m of coal in 25 seams with the thickest seam being 3 m. Based on the 1999 drilling, which intersected coal in 3 holes, Usibelli projected an estimated 2.1 million short tons of run of mine coal at Corduroy Mountain.
References
ALLEN, T.L., AND WESTON, L.H., 2001. Preliminary map of Division Mountain area (NTS 105E/5 W1/2 & 115H/8 E1/2), central Yukon. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 2001-3.
AURUM GEOLOGICAL CONSULTANTS INC., 1994. Yukon Coal Inventory 1994. Energy and Mines Branch, Economic Development, Yukon Territorial Government, 169 p.
CAIRNES, D.D., 1910. Lewes and Nordenskiold Rivers Coal District, Yukon Territory. Geological Survey of Canada Memoir 5, 70 p.
CASH RESOURCES LTD, Mar/98. Assessment Report #093824 by R.F. Gish.
CASH RESOURCES LTD, Apr/2000. Assessment Report #094129 by R.F. Gish.
TESLIN EXPLORATION LTD, Aug/70. Assessment Report #060584 by R.J. Kirker.
TESLIN EXPLORATION LTD, Nov/71. Assessment Report #060582 by J.F. Hlavay.
YUKON EXPLORATION AND GEOLOGY 1997, p. 32-33; 1999, p. 26 and 177-198.
The GSC reported that coal occurs in gopher holes on the south slope of Corduroy Mountain. The area was explored in 1970 and 1971, while it was held as Coal Exploration Licence 12 by Teslin Exploration Ltd which carried out reconaissance mapping and prospecting.
In Oct/92, Cash Resources Ltd aquired twenty-two Territorial Coal Licences, includind Licence Y 408 which encompasses the Corduroy Mountain area. Cash carried out trenching on the west side of Corduroy Mountain in 1997. In Nov/98, Cash entered into an option agreement with Usibelli Coal Mine Inc of Healy, Alaska allowing the company to acquire a 50% interest in the Division Mountain Project subject to certain work conditions. The Division Mountain Project encompasses coal mining rights to the Division Mountain deposit (Minfile Occurrence # 115H 013) and coal exploration rights to the surrounding area under various Coal Exploration Licences. In Mar/99 Usibelli carried out reverse circulation drilling of 5 holes (478.5 m) to test the extent of the coal seams discovered during trenching in 1997. Down-hole geophysical logging was also completed on 2 of the holes. In May/99 Usibelli dropped its option, due to low world prices for thermal coal.
In May/2001, Cash Resources Ltd was renamed Cash Minerals Ltd.
Capsule Geology
The area is underlain by the Upper Jurassic to Lower Cretaceous Tantalus Formation (Upper Member) conglomerate and sandstone, near the contact with underlying Upper Jurrasic Laberge Group rocks consisting of sandstone, siltstone, carbonaceous shales and coal seams of the Tanglefoot Formation (Upper Member). Trenching by Cash Resources in 1997, 4.25 km northwest of the float occurrence, uncovered 23 m of coal in 25 seams with the thickest seam being 3 m. Based on the 1999 drilling, which intersected coal in 3 holes, Usibelli projected an estimated 2.1 million short tons of run of mine coal at Corduroy Mountain.
References
ALLEN, T.L., AND WESTON, L.H., 2001. Preliminary map of Division Mountain area (NTS 105E/5 W1/2 & 115H/8 E1/2), central Yukon. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 2001-3.
AURUM GEOLOGICAL CONSULTANTS INC., 1994. Yukon Coal Inventory 1994. Energy and Mines Branch, Economic Development, Yukon Territorial Government, 169 p.
CAIRNES, D.D., 1910. Lewes and Nordenskiold Rivers Coal District, Yukon Territory. Geological Survey of Canada Memoir 5, 70 p.
CASH RESOURCES LTD, Mar/98. Assessment Report #093824 by R.F. Gish.
CASH RESOURCES LTD, Apr/2000. Assessment Report #094129 by R.F. Gish.
TESLIN EXPLORATION LTD, Aug/70. Assessment Report #060584 by R.J. Kirker.
TESLIN EXPLORATION LTD, Nov/71. Assessment Report #060582 by J.F. Hlavay.
YUKON EXPLORATION AND GEOLOGY 1997, p. 32-33; 1999, p. 26 and 177-198.
Location Map
Last Updated: Jul 26, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1999 | Drilling: Reverse Circulation | Five holes, 478.5 m. |
| 1999 | Ground Geophysics: Downhole Survey | Conducted on drill holes. |
| 1997 | Trenching: Mechanical | Approximately 360 cubic m. |
| 1971 | Other: Prospecting | Teslin Exploration Ltd could not locate float occurrence. |
| 1970 | Geology: Bedrock Mapping | Reconnaissance of three coal licences in the area. |
| 1908 | Geology: Bedrock Mapping |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Stikinia
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Laberge
Formation: Tanglefoot
Member: lower
Terrane:
Period Max: Jurassic
Age Max: 197 MA
Period Min: Jurassic
Age Min: 168 MA
Rock Major: sandstone/conglomerate/siltstone
Rock Minor:
Reference: Allen & Weston (2001) - YGS OF 2001-3
Geological Unit (1M): JL
Geological Unit (250K): JL2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 097188 | 2017 | NI43-101 Technical Report on the Division Mountain Coal Property and Related Exploration Licences, Yukon Territory, Canada | Data Compilation - Pre-existing Data | ||
| 097196 | 2017 | Report on Preliminary Reconnaissance of Coal Exploration Licence Areas in the Whitehorse Trough, North-Central Yukon, 2017 | Property Evaluation - Other | ||
| 019920 | 1971 | 1971 Report on Explorations for Coal in the Carmacks and Nordenskiold Areas | All Weather Road - Development, Surface, Rock - Geochemistry, IP - Ground Geophysics, Prospecting - Other | ||
| 060582 | 1971 | [Report on Explorations in Nordenskiold and Carmacks Area] | Diamond - Drilling, Rock - Geochemistry, Detailed Bedrock Mapping - Geology | 1 | 94.50 |
| 060897 | 1970 | Exploration Activities of Norman H. Ursel Associates Ltd. | Rock - Geochemistry, Gamma-ray Spectrometry - Ground Geophysics, Prospecting - Other, Handblast - Trenching |
