Calibre and B2Gold Trench Extension intercepts 30.5 metres grading 2.01 g/t Gold at the Minnesota Gold Project, Borosi Concessions, Nicaragua

17 jun. 2014

Vancouver, British Columbia: Calibre Mining Corp. (TSX-V: CXB) (the "Company" or "Calibre") is pleased to announce results from follow-up trenching and sampling at the Minnesota gold project within the B2Gold Corp. ("B2Gold") (TSX:BTO, BTG:NYSE MKT) Joint Venture on the Borosi concessions, northeast Nicaragua. Calibre controls a 49.0% interest in the joint venture and B2Gold has a 51.0% interest and is project operator. B2Gold has the right to earn an additional 19.0% in the Borosi concessions joint venture by spending $6.0 million in additional project expenditures over three years. The 2014 exploration program on the B2Gold joint venture is budgeted at $1.2 million.


  • Trenching at the Minnesota Gold Project has extended gold mineralization intercepting 30.5 metres grading 2.01 g/t Au. The trenching is located within a 700 metre by 125 metre auger sampling gold anomaly.

The latest results on the Minnesota Gold Project have extended the previously defined gold mineralization and have identified a new target located near the main trend.

Results for trenching completed by B2Gold returned 14.7 m grading 2.31 g/t Au in trench MINTR14-007. Trench MINTR14-007 is an extension to the south of Trench MINTR14-006 which intersected 14.8 m grading 1.85 g/t Au (see Calibre New Release dated May 7, 2014). The gold mineralization in the trenches remains open to the north and south.

Table 1 - Trenching Results - Minnesota Gold Project
Trench ID From (m) To (m) Interval (m) Au (g/t)
MINTR14-006* 0.0 14.8 14.8 1.85
MINTR14-007 0.0 14.7 14.7 2.31
MINTR14-006/7** 0.0 30.5 30.5 2.01

Notes; * previously reported
Length weighted averages from uncut assays.
Mineralized intervals are open to the north and south.
**Trench MINTR14-006+ MINTR14-007 weighted average assigns no grade to a 1.0m gap left unsampled between the two trenches

The Minnesota target area consists of intrusive hosted veinlets within a structurally prepared area with widespread alteration. The target is defined by a strong 1.75 km x 1.25 km gold in soil anomaly.

Recent sampling by B2Gold has identified new gold mineralization located approximately one kilometre to the north-northeast of trenches MINTR14-006 and MINTR14-007. The sampling returned three samples with greater than one gram per tonne gold including 1.86 g/t Au, 1.68 g/t Au and 5.99 g/t Au. The anomalous gold samples are located well off of the main mineralized trend and the mineralization is similar in style to mineralization in trenches MINTR14-006 and MINTR14-007.

Results for a series of gridded auger holes which have been completed within and to the northeast of the existing surface anomaly have further defined the nature and extent of the gold mineralization. The auger anomaly is approximately 125 metres wide with gold assays consistently above 100ppb Au. Trenches MINTR14-006 and MINTR14-007 are located within the extended anomaly. Overall the anomalous trench and auger rock samples define an area of pervasive gold mineralization approximately 700 metres long and up to 125 metres wide. Trenching and auger sampling continues on the Minnesota gold project.

Updated maps detailing the result of the current exploration program at the Minnesota Gold Project will be posted on the Company's web site at

Quality assurance and quality control procedures include the systematic insertion of blanks, standards and duplicates into the rock and soil sample strings. Samples are placed in sealed bags and shipped directly to Acme Labs in Managua, Nicaragua for sample preparation and then to Acme Labs in Vancouver, Canada for gold fire assay and ICP-MS multi element analyses. The technical content in this news release was read and approved by Gregory Smith, P.Geo, President and CEO of the Company who is the Qualified Person as defined by NI 43-101.

About Calibre Mining Corp.

Calibre controls a 100% interest in 253 km2 of mineral concessions in the Mining Triangle of Northeast Nicaragua. Additionally the Company has an option agreement with IAMGOLD covering 176 km2 of concessions, joint venture exploration programs underway with B2Gold Corp. on 322.3 km2 of concessions which includes the Primavera gold-copper porphyry discovery, and has optioned the 33.6 km2 Rosita gold-copper-silver project to Alder Resources Ltd. Major shareholders of Calibre include gold producer B2Gold Corp.

Calibre Mining Corp.

"Greg Smith"

Greg Smith, P.Geo.
President and CEO

For further information contact:
Ryan King
604 628-1012

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.


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