NioGold Mining Corporation

NioGold Mining Corporation

July 11, 2007 08:50 ET

NioGold Continues to Expand Gold Mineralisation Around Historic Marban Mine

VAL-D'OR, QUEBEC--(Marketwire - July 11, 2007) - NioGold Mining Corporation (TSX VENTURE:NOX)(FRANKFURT:NG1) ("NioGold") reports on first results of the 2007 drilling program on the Marban Block property, located in the Malartic Gold Camp, Quebec.

Complete assay results were received for the first four holes (MB-07-003 to MB-07-006) drilled to test the near-surface extent of the Marban Mine Sequence above and to the north of the former Marban mine workings. All holes returned gold mineralised intervals and expanded significant mineralisation reported in 2006 in hole MB-06-001 returning:

- a near-surface intersection of 5.3 g/t Au over 4.0 metres within a thicker mineralized envelope averaging 1.2 g/t Au over 31.7 metres in hole MB-07-005;

- a near-surface intersection of 8.5 g/t Au over 2.8 metres within an envelope averaging 2.0 g/t Au over 16.0 metres; and

- a deeper intersection of 6.2 g/t Au over 3.0 metres within an envelope averaging 1.5 g/t Au over 15.0 metres in hole MB-07-006

See table below for complete results.

The initial phase of the 35,000-metre 2007 drilling program is targeting the Marban Mine area, one of the several priority targets being investigated on the Marban Block in order to increase gold resources that are presently estimated at the Norlartic and Kierens deposits (see News Release dated June 28, 2007). The results from the first four holes continue to confirm the gold enriched nature of the Marban Mine Sequence and its potential to host disseminated bulk-style of mineralisation.

To date, NioGold has completed a north-south fence of ten holes (MB-07-003 to MB-07-012) drilled 450 metres east of the Marban mine shaft (Section 4+50E). The holes investigated the surface and depth extent of the Mine Sequence over a dip extent of 550 metres. All holes intersected disseminated sulphide and vein stockwork zones typical of the gold-bearing intervals cut in hole MB-06-001 drilled on Section 5+00E. Hole MB-06-001 returned a near-surface cut of 3.6 g/t Au over 26.4 metres (incl. 10.8 g/t Au over 4.0 m) and 1.3 g/t Au over 43.0 metres (incl. 6.9 g/t Au over 2.0 m) at depth. Complete assay results are pending for holes MB-07-007 to MB-07-012.

The drill rig was moved 100 metres to the east to complete a second fence of holes across the Mine Sequence on Section 5+50E.

Marban Mine Area - 2007 Drilling Results

Mine Core Grade
Line Station Depth Sequence From To Length (g/t
Hole # (m) (m) Az Dip (m) Target (m) (m) (m) Au)
MB-07 4+50 E 1+56 S 182 -60 134.6 near 86.3 90.0 3.7 1.12
-003 deg- deg- surface
rees rees
110.7 111.5 0.8 2.21
MB-07 4+50 E 1+73 S 182 -50 170.6 near 41.0 42.0 1.0 1.75
-004 deg- deg- surface
rees rees
53.0 69.0 16.0 0.84
74.1 75.3 1.2 1.25
141.6 146.3 4.7 1.83
including 144.2 145.2 1.0 6.37
MB-07 4+50 E 0+50 S 181 -59 221.6 near 71.3 103.0 31.7 1.17
-005 deg- deg- surface
rees rees
including 96.0 100.0 4.0 5.25
121.0 121.8 0.8 7.84
MB-07 4+50 E 0+02 N 180 -60 365.0 near 38.7 40.1 1.4 1.13
-006 deg- deg- surface
rees rees
85.0 90.0 5.0 0.85
140.0 156.0 16.0 1.99
including 151.2 154.0 2.8 8.51
downdip 295.4 304.0 9.6 1.00
333.0 348.0 15.0 1.48
including 345.0 348.0 3.0 6.18
MB-07 4+50 E 0+55 N 184 -61 347.6 downdip pending
-007 deg- deg-
rees rees
MB-07 4+50 E 0+55 N 187 -83 667.6 downdip pending
-008 deg- deg-
rees rees
MB-07 4+50 E 3+16 S 182 -61 216.0 updip pending
-009 deg- deg-
rees rees
MB-07 4+50 E 2+62 S 182 -60 254.0 updip pending
-010 deg- deg-
rees rees
MB-07 4+50 E 2+11 S 182 -61 279.0 updip pending
-011 deg- deg-
rees rees
MB-07 4+50 E 1+46 N 183 -83 783.0 downdip pending
-012 deg- deg-
rees rees
Total 3,439

Quality Assurance / Quality Control and Qualified Persons

Diamond drill holes were drilled with NQ-size core in order to obtain larger sample volumes for the mineralised zones. The core was delivered by the drilling contractor to NioGold's facilities located at the Norlartic mine site. The core was photographed for reference, logged and mineralized sections were sawed in half. Sample lengths varied between 0.5 to 1.5 metres. The half core samples were bagged, sealed and trucked to Activation Laboratories Limited ("Actlabs") in Ancaster, Ontario, an accredited laboratory. Samples were assayed by the fire-assay method using an atomic absorption finish on a 50-gram pulp split.

A quality assurance and quality control program (QA/QC) was implemented by NioGold and the laboratory to insure the precision and reproducibility of the analytical method and results. The QA/QC program includes the insertion of standards, blanks and duplicates in the sample batches sent to the laboratory and a systematic re-assaying from the remaining coarse reject fraction by the fire-assay method with an atomic absorption finish for samples returning values of 2 to 5 g/t Au and by gravimetric finish for samples returning values greater than 5 g/t Au. As well, 10% of the pulps are sent to Bourlamaque Assay Laboratories Ltd. in Val-d'Or for check assaying.

This press release was prepared by Rock Lefrancois, P. Geo. (OGQ), the Company's Vice-President and Qualified Person as defined by National Instrument 43-101. The exploration programs are conducted under the supervision of Bertrand Brassard, M.Sc., P.Geo. (OGQ), also a Qualified Person as defined by National Instrument 43-101.

NioGold Mining Corporation - "The Golden Highway Runs Through NioGold"

NioGold Mining Corporation is a junior exploration company primarily focused on GOLD. The Company's main properties are the Camflo West and the Marban Block located in the Malartic and Val-d'Or Mining Camps, with a historic production of 25 million ounces of gold. The camps presently encompass several active advanced exploration and mine development projects such as Canadian Malartic (Osisko Exploration), Kiena (Wesdome), Midway (Northern Star Mining), Goldex (Agnico-Eagle) and Lac Herbin (Alexis Minerals). The Marban Block encompasses three former gold producers, namely the Norlartic, Kierens (First Canadian), and Marban mines that collectively produced 592,265 ounces of gold.

NioGold's experienced and qualified technical team will ensure the successful advancement of the Company's projects towards the highest quality mineral resources. NioGold invites you to visit the company website at

This Press Release includes forward-looking statements that are subject to risks and uncertainties. All statements within, other than statements of historical fact, are to be considered forward looking. There can be no assurances that such statements will prove accurate and, therefore, readers are advised to rely on their own evaluation of such uncertainties.

The TSX Venture Exchange or the Frankfurt Stock Exchange did not approve nor do not accept responsibility for the adequacy or accuracy of this news release.

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