Cooke Mountain Project


Oversight - Lambert Creek – HLK - Lamefoot South - Lamefoot East – Goodfoot – Strongfoot - St. Peters Creek

Adamera Minerals holds a broad land position in the Cooke Mountain area in Washington State. The land surrounds or encompasses part of 5 past producing mines including Overlook, Lamefoot, Key West, Key East and Belcher. The Kettle River Gold Mill which was recently placed on care and maintenance is central to Adameras Cooke Mountain project. Approximately 1M oz. of gold have been mined from these high-grade deposits during the 1990s.

A recent VTEM survey combined with ground magnetics, detailed soil sampling and geological mapping has defined numerous high priority targets which are currently being drilled.

Cooke Mountain Trends

As a result of an aggressive 2017-2018 exploration program and interpretation of associated data and results, Adamera has defined two significant gold producing multi-kilometre trends within the Cooke Mountain Project. The two trends include the Overlook Gold Trend on the east side of the project and the Lamefoot Gold Trend on the west side. Both trends contain numerous untested and or drill confirmed targets.


Overlook Trend – ( Figure 1 )


A.  Deep Overlook - Deep Overlook refers to the high-grade gold intercept of 9.6 g/t gold over 10.8 metres intersected below old workings of the Overlook Mine. The intercept was at a depth of 209 metres. The Company is currently generating a 3D model to determine how to best test the extent of this horizon. Final hole selection and any additional drill permitting should be completed in time for a July drilling start.


B.  Overlook Mine High-Grade Veins – Historic drill holes within the southern portion of the Overlook mine intersected shallow veins carrying significant mineralization, including a drill hole with 5 g/t gold over 45 metres. This style of mineralization is important as it reportedly contributed to half of the gold produced at the mine.

Adamera drilled two holes, OS17-01 and 03 approximately 300 metres from the Overlook Mine. Both holes intersected shallow zones of high-grade gold mineralization associated with quartz and sulfide veining. Intervals of significance include 6.5 g/t gold over 3 metres (including 10.3 g/t gold over 1.2 m), 9.3 g/t gold over 1.1 metres and 15 g/t over 0.3 metres.  A test induced polarization (IP) survey recently completed over the two drill holes generated an anomaly that warrants drill testing.


Prospecting For Overlook Style Veining - Anomalous gold in soils being detected directly above shallow vein occurrences suggests Overlook style veining is the source of such surface gold. Adamera has conducted extensive sampling resulting in anomalous gold in soils. These areas are devoid of magnetic or EM responses so remained untested. Such areas may have significant unrecognized potential for Overlook veining should IP surveying be confirmed as an effective prospecting tool.

Outlook Ridge is an occurrence of high-grade veins that was discovered by surface prospecting. Grab samples from several locations on a 1 km transect yielded gold values ranging from 8 to 69 g/t.  The planned IP survey will cover this area.


C.  Key West Mine Extension - VTEM conductors that extend 450 metres north of the Key West Mine were tested by two Adamera drill holes.  Multiple zones of significantly anomalous gold include up to 2.3 g/t gold over 4.4 metres. The highest gold values are associated with magnetite rich material in the drill core. Several zones of high magnetics within the VTEM anomaly are untested and warrants drilling.


Overlook Trend - Figure 1


Overlook/ Oversight Area

Adamera's drilling has identified two sources of gold mineralization on this property using two different methods of exploration.

  1. Shallow high-grade gold associated with silica alteration in high level clastic rocks. The shallow mineralization appears to be best targeted using soil geochemistry ranging from surface to 60 metres depth.
  2. Deeper high-grade mineralization occurs in massive sulfide/magnetite at the limestone clastic rock contact. This mineralization is highly conductive and detectible using an airborne VTEM survey. A recently flown VTEM survey has identified an 800 metre conductor on this property.

The Overlook Mine lies in the central part of this conductor leaving the northwest and southeast extent of the conductor important exploration targets for Adamera.

The most recent drilling was conducted near the past producing Overlook Mine. Several holes have intersected mineralization including a zone with 9.6 g/t Au over 10.9 metres. (see table)

Key West - Northern Extension

Adamera's Cooke Mountain property includes a large portion of the past producing Key West deposit. A VTEM survey has identified conductors extending out from the existing open pit mine and to the north along strike. Soil sample results exhibit gold, copper and arsenic anomalies associated with these conductors making these high priority targets.


Part of the Cooke Mountain project includes land on strike of the past producing Lamefoot deposit. Detailed soil sampling, ground geophysics, structural mapping and prospecting have developed targets similar to the Lamefoot deposit. Several targets have been outlined for drilling.

Martin St. Pierre P.Geoph, a Qualified Person as defined by National Instrument 43-101 has reviewed the data in this release. 

Maps & Figures

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