Creso Announces 2320 g/t Ag Over 1.0 Metre Interval Within 131 g/t Ag Over 29.3 Metres Intersection in the First Results from the Mann Property Drill Program


MONTREAL, QUEBEC--(Marketwire - Dec. 1, 2011) - Creso Exploration Inc. ("Creso" or the "Company") (TSX VENTURE:CXT) (OTCQX:CRXEF) (FRANKFURT:C3X) is pleased to announce the results from the first diamond drill hole completed on the Mann property in Milner Township.

The program is designed to confirm historic drill results and test the extensions of the D Zone beyond the known underground workings (see Press Releases dated September 1 and November 4, 2011).

Drill hole number MN11-01 intersections include both silver and cobalt-bearing vein systems.

The silver highlights shown in Table 1 below are higher grade intersections in a 29.3 metre silver mineralized zone from 29.0 to 58.3 metres, characterized by silver values greater than 1 g/t and portions of potassium enrichment over 1% K2O.

Table 1. DDH MN11-01 Silver Enriched Zone
Hole
Number
From
metres
To
metres
Length
metres
Grade
Ag (g/t)

Comment
MN11-01 29.0 58.3 29.3 131 anomalous silver zone
including 37.0 38.0 1.0 2320 intersection above historic drift
including 52.2 52.7 0.5 1210 intersection below floor of historic drift

The best cobalt interval was intersected below the anomalous silver zone. The cobalt results are shown in Table 2.

Table 2. DDH MN11-01 Cobalt Intersection
Hole
Number
From
metres
To
metres
Length
metres
Grade
Co (%)

Comment
MN11-01 111.5 117.3 5.8 0.34 intersection of qtz/cal vein in
including 112.9 114.3 1.4 1.12 diabase

A total of 5 drill holes have been completed in the Mann property program, for a total of 775 metres. Drill results from 4 holes are pending. They will be reported as they become available.

This Press Release has been reviewed and approved by Mr. Mike White, M.Sc., P.Geo., the Qualified Person under National Instrument 43-101.

Creso Exploration QA/QC procedures follow standard industry practices. Sealed core boxes are transported twice daily from the drill rig to the core logging facility by qualified drill contractor personnel. Core is logged and prepared for sampling in a secure building. Sample intervals are selected according to geologic contacts, visible mineralization, and alteration. Drill core is cut along a center line using a typical circular rock saw designed for core cutting. Sampled core is placed into sample bags, sealed and shipped to an assay lab that follows the ISO 9000 series of Quality Management standards. All samples were analyzed for silver, gold and other trace elements at ALS Group Ltd. laboratories by standard industry procedures. These procedures include silver and gold by fire assay-AAS finish, with follow-up silver and gold analyses by fire assay-gravimetric finish and/or metallic screen. Multi-element analysis is done by ICP (ME-ACD81) using a four-acid digestion. Whole rock analysis is done by ICP-AES (ME-ICP06) using a lithium metaborate fusion.

Blank and certified standard samples are routinely submitted with all sample batches sent to the lab for assay. In addition, replicates, duplicates, and field duplicates are routinely included in sample batches. Samples with visible gold are analyzed with procedures designed to reduce the variability of the sample results. And finally, samples are routinely sent to other labs for additional checks.

About Creso

The Corporation's principal mining exploration holdings are located in the Shining Tree mining camp of Northern Ontario within 100 km of the Timmins and Kirkland Lake mining camps, and additional interests are held in base metal properties in Guatemala.

FORWARD LOOKING STATEMENTS: This press release contains forward-looking statements that address future events and conditions, which are subject to various risks and uncertainties. Actual results could differ materially from those anticipated in such forward- looking statements as a result of numerous factors, some of which may be beyond the Corporation's control. These factors include: results of exploration activities, general market and industry conditions, and other risks disclosed in the Corporation's filings with Canadian Securities Regulators.

Forward-looking statements are based on the expectations and opinions of the Corporation's management on the date the statements are made. The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements. The Corporation expressly disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by applicable law. Depending on exploration results and available financing, the Corporation may at any point modify its work program.

Neither 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.

Contact Information:

Pierre Gauthier
Chairman, Interim President and CEO
(514) 866-6001 # 239
(514) 866-6193 (FAX)
info@creso.ca
www.creso.ca

Douglas Murray
Investor Relations
(613) 220-0569 / (613) 882-7295
dmurray@creso.ca
www.creso.ca