Mobilizing For Exploration Drilling At Montagne d'Or Gold Deposit, French Guiana

VANCOUVER - Columbus Gold Corp. reported that a drill rig has arrived at Columbus‚ 100% owned Montagne d'Or Gold deposit in French Guiana, in preparation for an exploration drilling program scheduled to commence in early February.  Montagne d'Or hosts Indicated mineral resources of 3.9 million ounces (contained within 83.2 million tonnes grading 1.45 g/t gold) and Inferred mineral resources of 1.1 million ounces (contained within 22.4 million tonnes grading 1.55 g/t gold) using a cut-off grade of 0.4 g/t gold.

In anticipation of the forthcoming completion of a Bankable Feasibility Study on the Montagne d'Or gold deposit, an exploration focused drilling program will be carried-out, with the objective of assessing expansion potential. Drilling equipment is now on site and road and drill pad construction is underway.  The program will consist of 36 core holes, for a total 5,520 meters, designed as a first pass investigation of exploration targets on strike of, and in very close proximity of the currently defined mineral resources that form the deposit.  Three separate targets will be tested outside of the deposit envelope.

In addition, within the Montagne d'Or deposit envelope one hole (hole 01) will test the depth extension of the gold mineralization.  To date the vertical depth of drilling has averaged only about 250 meters.

One deep drill hole (hole 01), 740 meters in length will test the down-dip extent of the principal UFZ and secondary LFZ mineralized zones on drill section 2890mE, within the west-central segment of the deposit.  This segment displays the best continuity and average grade of the gold mineralized envelopes within the drilled-out area. The UFZ is projected to be intersected at -350 meters of vertical depth from surface (-100m ASL elevation), 100 meters below the intersection of 2.88 g/t gold over 67.0 meters obtained in hole MO-12-72, on drill section 3010mE at 250 meters of vertical depth (0m ASL elevation). 

Magnetic, electromagnetic and radiometric airborne geophysical survey data has traced the prospective volcano-sedimentary sequence hosting the Montagne d‚Or gold deposit for up to 5 km to the west.  Twenty-two (22) holes on four drill fences, located on sections 2200mE, 2000mE, 1600mE and 1150mE, are planned to test the soil-gold anomaly and rock chip gold values obtained along the western projection of the drill defined mineral resources. The planned drill fences represent 200, 400, 800 and 1,250 meter step-outs from the western limit of the Montagne d‚Or mineral resources at 2400mE.  Drill hole fences 1600mE and 1150mE are located on an exclusive exploration permit granted to Columbus recently in July 2016.

Drill hole fences 2200mE and 2000mE (holes 02 to 13) will test the principal UFZ and secondary LFZ zones at 200?meter spacing along strike from drill section 2400mE. The holes will also test the WSW extent of an ENE-trending gold mineralized structure intersected in historical hole MO 97 29 and MO 97 30, which returned intercepts of 10.96 g/t gold over 3.0 meters and 11.58 g/t gold over 4.5 meters, respectively.   

Drill hole fence 1600mE (holes 14 to 19) was designed to traverse the entire thickness of the prospective volcano-sedimentary sequence, 800 meters on strike from the Montagne d'Or mineral resources. The area geology is masked by a layer of displaced material (landslide) originating from the upper elevations of a massif to the south. Note that the truncation of the soil-gold anomaly over this area is a result of the landslide cover.

Drill hole fence 1150mE (holes 20 to 24) will the test the soil-gold anomaly and rock chip gold values obtained from sulphide mineralized volcanics exposed in drainages. The mineralized material type is comparable to the mineralized type at the Montagne d'Or deposit.

Drill hole fence 25 to 30 will traverse a broad northwesterly-aligned soil-gold anomaly. The geochemical anomaly, located 500 meters to the east of the eastern limit of the Montagne d'Or mineral resources, straddles the boundary between mining concession C02/46 and an exclusive exploration permits granted to Columbus in July 2016.  Holes 31 to 33, on the same fence as holes 25 to 30, will investigate a cross-cutting WNW-ESE aligned soil gold anomaly.

The highest values within the Gustave soil-gold anomaly are centered on a quartz vein uncovered at the southwest limit of the trend, referred to as the Gustave vein. The Gustave vein, oriented N40°W and dipping 60° to the NE, was tested with two core holes in historical drilling in 1997 (MO 97 47 and 48). An intersection of 31.94 g/t gold over 3.5 meters was returned in hole MO 97 48 within the immediate wall of the vein. 

Drill holes 34, 35 and 36 will investigate soil-gold anomalies obtained on prominent linear NS, NNE and NNWaligned topographic highs, where quartz vein debris is exposed along the flanks. The ridges are interpreted to be cored by resistant quartz veins.  Within Columbus‚ claim block, these structural orientations are known to host quartz-gold veins and stockworks, such as at the Elysee prospect, located 10 km to the west-northwest of the Montagne d'Or deposit.