Freeport Resources Ltd.Freeport Resources Ltd.

Spanish Mountain Gold

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Detailed Geology

Known placer workings in the area include the Cedar Creek Placers, the McKeown Placers, and the historic Bullion Pit - one of the largest placer gold mines in the world, measuring 1500 m by 450 m by 125 m (4920' by 1476' by 410'). Spanish Mountain has been proposed as the possible source of these gold-rich gravels (Minfile 093A 043).

The Spanish Mountain area comprises Upper Triassic sediments and volcanic rocks and is part of the Quesnel Terrane near its Eureka Thrust contact with the older Omineca Terrane.

Mineralization is hosted by highly folded and faulted metasedimentary rocks with some interstratified volcanics of the Nicola Group. The metasedimentary rock consists of slaty to phyllitic, dark grey to black shale and siltstone, grey limestone and some banded tuff, volcanic breccia and pillow lavas higher in the stratigraphy.

Spanish Mountain Developments

Work by Spanish Mountain Gold Ltd. (SMGL, formerly Skygold Resources) has been successful in outlining large areas of low-grade gold mineralization close to surface, with bulk mineable potential. Gold-bearing zones are stratigraphically controlled, trend NW-SE, and extend over 1.44 (over 0.56 sq.mi.), open in all directions. Spanish Mountain was recently interpreted as a Sediment Hosted Vein Deposit (see SHV Deposits section).

This section is a summary of published findings, including Geochemistry, Drilling, Metallurgy and Geophysics, as contained in the websites and sedar filings of SMGL/Skygold. Please see for current information.

Gold mineralization on Spanish Mountain is described as of two types:
  1. High grade quartz veins/stockworks with gold, galena, sphalerite, chalcopyrite, tetrahedrite and pyrite.
  2. 2. Lower grade, bulk tonnage ore represented by auriferous pyrite in a graphitic silty shale along a contact between argillites and greywackes.
According to SMGL/Skygold, "Drilling within the Main Zone has consistently intersected gold in the Upper Argillite horizon which now forms a sheet of mineralization traced along strike for approximately 800 metres with a width of approximately 500m and up to 135 metres thick" (2007.11.15). Freeport's claims are adjacent to and on strike with the Main Zone.


Skygold's 2003 soil sample results from over 1400 samples revealed a large north-northwest trending zone of anomalous gold, over 1200 m long and up to 500 m wide (3937' by 1640'). Anomalous levels were generally greater than 300 ppb, with many over 1000 ppb. This trend is well illustrated on the Geochem and Drill hole location map. Some soil samples assayed as much as 37 grams gold per tonne (1.08 oz per ton).

Freeport's 2007 reconnaissance sampling survey revealed significant gold anomalies suggesting continuity of the mineralized zone eastward. Soil and rock samples collected over a geophysical 'resistivity low' reach over 400 ppb in soil and up to 0.13 g/t in weathered pyritic argillite and greywacke surface rocks -- the same rock types as seen at SMGL/Skygold's mineralized horizon.


In 2006, a DIGHEM electromagnetic/resistivity/magnetic survey was flown over Spanish Mountain. Geophysical resistivity lows reportedly correspond with broad zones of argillite favourable for sediment hosted gold; mineralization is associated with a contact between argillites and greywackes, with higher grade gold in greywacke host rock. The low resistivity anomalies extend onto Freeport's claims. Trenching over geophysical anomalies has successfully located new gold-bearing horizons.

Drilling & Results

Notable intersections reported by Skygold include 29.07 g/t gold (.847 oz/ton) over 10 metres (32.8') and 7.99 g/t gold (.233 oz/ton) over 19 metres (62.3'). Lower grade intercepts include 1.81g/t gold over 94.5 metres, 1.34g/t gold over 116 metres and 1.30g/t gold over 86.9 metres. A bulk sample of 2,100 tonnes taken in 2000 averaged 3.02 grams Au/ton.

Skygold noted, "...the zone may be getting wider to the east" (2007.09.10). Reverse circulation holes have been drilled within 54 metres (177 feet) of Freeport's west property boundary. Published results from the adjacent PESO claims include:
  1. DDH 559: 22.5 m (73.8') of 1.45 g/t (.042 oz/ton)
  2. Cabin Trench: 9.0 m (29.5') of 0.067 oz/ton (2.297 g/t)
  3. Green Pit: 1.0 m (3.3') of 17.74 oz/tonne (0.517 oz/ton)
SMGL/Skygold recently announced initial NI 43-101 compliant Resource Estimates for its Spanish Mountain property of 67.06 million tonnes averaging 0.81 g Au/t, or 1.75 million ounces in the Measured and Indicated categories (2008.04.03).

Conclusion & Recommendations

In summary, anomalous gold in samples from areas of low resistivity on Freeport's claims suggests continuity of SMGL/Skygold's gold-bearing Main Zone to the west.

A multi-stage program of sampling, trenching and drilling to verify extension of the mineralized zone over Freeport's property is recommended.


BC MINFILE 2004 093A 025 Bullion Pit
BC Ministry of Energy & Mines, 2004
BC MINFILE 2004 093A 025 Bullion Pit, Capsule Geology and Bibliography, Bullion Pit

BC MINFILE 2004 093A 043 Spanish Mt
BC Ministry of Energy & Mines, 2004
BC MINFILE 093A 043 Spanish Mountain, Capsule Geology and Bibliography

BCGS 1998 Sediment Hosted Gold
British Columbia Geological Survey, Geological Fieldwork 1998, Paper 1999-1
David V. Lefebure, Derek A. Brown and Gerald E. Ray,
The British Columbia Sediment-Hosted Gold Project

Kaiser 2005 Spanish Mt play Comes Alive
Kaiser Bottom-Fishing Report, Express 2005-02 (Jan 13, 2005)
Spanish Mountain play of Skygold and Wildrose comes alive

NRC Canadian Minerals Yearbook 2004, Gold
Natural Resources Canada, Minerals and Metals Sector 2004