Clavos Project

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Mine TypeUnderground
StatusCare and Maintenance
  • Gold
Mining Method
  • Cut & Fill
  • Longhole stoping
Mine Life... Lock
SnapshotOn May 11, 2018, Sage Gold Inc. (“Sage”, or the “Company”) announced that it had received a Notice of Default from CRH pursuant to the GPA for failure to deliver Refined Gold from gold produced from bulk sample mill runs of Clavos mineralized material in 2018. In addition, on June 26, 2018, the Company was served with a Notice of Intention to Enforce Security under Section 244 of the Bankruptcy and Insolvency Act on behalf of CRH.

On January 11, 2019, one of the prospective purchasers provided the Receiver with a non-refundable payment of $10,000 USD to be applied to its deposit to allow the Receiver, in conjunction with the Director, to provide access to the purchaser’s agent to inspect the pumps underground and to inspect the Clavos Property.

These efforts lead to the Receiver securing definitive agreements for the purchase of the Onaman and the Clavos properties.


Sage Gold Inc. 100 % Direct
Since the inception of the Interim Receivership and Receivership Administration, the Receiver engaged Sage’s previous mine manager and staffing company, R. Ritchie Services Ltd. (“Ritchie Services”) for the Clavos Property to complete care and maintenance activities, including dewatering activities, environmental water testing, equipment clean-up, winterization measures and property maintenance (“Care and Maintenance Program”).

Deposit type

  • Vein / narrow vein


Gold mineralization occurs in a series of quartz and quartz-carbonate veins which are interpreted from the drilling as being steeply dipping and east-west striking, roughly parallel to the Porcupine-Destor Fault Zone (PDFZ). The veins, while appearing to be consistent in orientation from section to section are observed in the drill core to occur in a wide variety of orientations. It is highly likely that many of these veins are not tabular, but irregular in shape, similar to others observed in the gold deposits of the Timmins area.

The quartz veins occur most often in the mafic volcanic rocks, usually in proximity to porphyry intrusions. There is a persistent zone of quartz veining associated with the sedimentary-volcanic contact, and there are some wide vein intercepts to the south of the contact, but these tend to be weakly mineralized.

The mineralization at Clavos is located within an envelope of highly altered ultramafic flow and volcanic clastic fragmental rock referred to as the DL zone. The DL zone, which lies approximately 10m north of the sedimentary-volcanic contact, varies in thickness from 30m to 60m, is cored by several semi-concordant, east-west trending, steeply dipping and shallow eastplunging feldspar porphyry bodies of up to 20m in thickness. The shallow easterly plunge is regional in character and is overprinted by local structures.

There are six gold-bearing mineralized zones inwhich mineral resources have been estimated at Clavos. These are locally referred to as the Hanging Wall Zone (HW Zone), the Foot Wall Zone (FW Zone), the Contact Zone, the Sediment Zone, the 960 Zone, and a group of miscellaneous intersections listed as Other Mineralization.

In general, the best veining within the DL alteration envelope occurs close to the contacts of all three intrusive types. Deformed early grey, ribbon or stylolitic veining, with pyrite and arsenopyrite in stylolites when in close proximity with vein margins appears to be related with to the best gold values.

Significant gold grades have also been encountered within the porphyry bodies, primarily along the contacts with the HW Zone and FW Zone; however the gold mineralization lacks continuity and is more erratic in distribution. Arsenic is common for deposits of this type where the gold is unevenly distributed within the veins. Numerous occurrences of visible gold have been noted in drill core from the property and there are a number of very high grade assays in the database, measuring in tens and hundreds of g/t Au.

Structurally, the higher grade mineralization occurs within numerous east plunging shoots of up to 50 m in strike length. A secondary shallow plunge to the west defines roll structures within the shoots. Where mined, very high gold grades have been encountered at the intersection of the shoots and roll structures. Both structures overprint an earlier regional plunge of approximately 30º to the east. In general, the best veining within the DH alteration envelope occurs close to the contacts of all three intrusive types. Deformed early grey, ribbon or stylolitic veining, with pyrite and arsenopyrite in stylolites and near vein margins appears to be related with the better gold values.



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Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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All production numbers are expressed as metal in doré.

Production Costs

Total cash costs Gold 1,025 / oz *  CAD
Assumed price Gold 1,500 / oz *  USD
* According to 2013 study / presentation.

Operating Costs

UG mining costs ($/t mined) CAD 113.5 *  CAD
Total operating costs ($/t milled) CAD  ....  Subscribe
* According to 2013 study.

Project Costs

MetricsUnitsLOM Total
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UG OpEx $M CAD  ......  Subscribe
G&A costs $M CAD 12.1
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Pre-tax Cash Flow (LOM) $M CAD  ......  Subscribe
After-tax Cash Flow (LOM) $M CAD  ......  Subscribe
Pre-tax NPV @ 8% $M CAD  ......  Subscribe
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Pre-tax payback period, years  ......  Subscribe

Heavy Mobile Equipment


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