Mesa Uranium Corp.

Mesa Uranium Corp.

December 13, 2006 12:34 ET

Mesa Uranium Corp.: Exploration Program Update

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Dec. 13, 2006) - Mesa Uranium Corp. (TSX VENTURE:MZU) ("Mesa") is pleased to provide an update on exploration at the 100%-owned Lisbon Valley uranium project in Utah. The project covers 7,700 hectares in the Lisbon Valley Mining District with historic production of 85 million pounds of U3O8.

North Alice Mine Target

The North Alice Mine target is adjacent to the historic North Alice Mine that is part of a cluster of mines that together produced 30 million pounds of U3O8. Drilling is testing for mineralization extending beyond the old mine workings along the ore trend.

To date three holes have been completed. NA-1 encountered favorable Moss Back sandstone. Poor conditions due to faulting in the area prevented gamma probing of this hole. Samples for chemical assays of uranium were taken and are pending.

Hole NA-2 was completed with excellent sample recovery. Gamma probing for this hole detected 5.5 feet of mineralization from 861 to 866.5 feet averaging 0.026% U3O8 in what appears to be reduced Cutler sandstone. This mineralized intercept is significant as it is 100 feet underneath and along trend with the North Alice mine workings where ore was mined from the Moss Back sandstone.

The third hole, NA-3, intercepted 1.5 feet of 0.16% U3O8 at 334 feet and 3.0 feet of 0.02% U3O8 at 371 feet in classic Lisbon Valley Moss Back sandstone. A 10 foot zone of 0.01% U3O8 mineralization was also found deeper in a Cutler sandstone at 560 feet. Mesa plans follow-up drilling in 2007 on these multiple Moss Back and Cutler intercepts.

Texwood Mine Target

The Texwood Mine target is along the northern ore trend at the Texwood Mine. The Texwood Mine target is located adjacent to the Texwood Mine and is 600 meters northwest of the historic Mi Vida Mine, which produced 12 million pounds of U3O8 from 1953 through 1970 from the Moss Back sandstone. The School Section 2 Mine, also on the property, produced ore from the Cutler sandstone lying beneath the Moss Back sandstone. Drilling is currently underway on this target.

La Sal Channel Target

The La Sal channel target is located on the western extension of the main La Sal channel. The Channel is a nine-mile long, east-west trending district with historic production of 20 million pounds of U3O8 in the upper Salt Wash member of the Morrison Formation. Historical U3O8 reserves remain on this trend where formerly producing mines are being re-opened by various operators. Energy Fuels recently announced the acquisition of the Hecla JV property immediately east of Mesa's property and International Uranium is currently opening the Pandora Mine on the eastern end of the channel. Mesa is excited about developments in this district and drilling will proceed upon receipt of permits.

Southeast Lisbon Mine Target

The Southeast Lisbon Mine target is on the downthrown side of the Lisbon Valley fault and was the site of Mesa holes L-1 through L-10 (see Mesa news release dated October 25, 2006). Of these 10 initial holes L-4 and L-7 were the most strongly mineralized and appear to be on a northwest-southeast trend with the Lisbon Mine. Reviews of subsurface data indicate that a large, favorable, un-drilled area exists further southeast along this trend. This area has been permitted and will be drilled in 2007.

Section 32, Middle Flank, and Lisbon Springs Targets

The Section 32, Middle Flank, and Lisbon Springs targets are located further southeast of the Lisbon Mine and include large un-drilled areas along the eastward projection of what Mesa believes is a mirror image of the Lisbon Valley District ore deposits on the opposite side of the Lisbon Valley anticline. Mesa is currently acquiring subsurface data from previous exploration companies in order to enhance our exploration model for targeting, with drilling planned for 2007.


In addition to the above uranium results, Mesa has encountered visible copper mineralization at the North Alice property in hole NA-1 at a depth of 200 feet in a Dakota Formation sandstone. Assay results for copper are pending for the NA-1 intercept. Mesa also believes the Section 2 Copper target in the southeastern part of Lisbon Valley to be prospective for copper mineralization based on Constellation Copper drilling activities adjacent to Mesa land on the same fault trend.

While copper is not the main focus of Mesa Uranium, we need to be aware of all opportunities in the area. Copper mineralization has been mined at either end of Lisbon Valley from Dakota Formation sands within the Lisbon Valley fault. Constellation Copper is currently operating two mines along this fault system, therefore the requisite infrastructure is in place should Mesa decide to either pursue these opportunities on our own, involve Constellation Copper, or another miner to maximize the value of these prospects for Mesa shareholders. The Section 2 Copper Target is permitted and will be drilled in 2007.

Other Activities

Mesa is currently pursuing other property acquisitions containing uranium reserves defined by historical drilling and evaluating historic reports that project favorable ore trends towards or across Mesa-controlled properties. Recent staking by Mesa has added an additional 400 hectares of mineral claims to the La Sal channel and North Alice Mine targets.

The Lisbon Valley District produced over 85 million pounds of U3O8, at some of the highest uranium grades in the United States, averaging 0.4 percent U3O8. The Lisbon Valley Mining District is located in the Colorado Plateau region, 30 miles south of Moab, in San Juan County, Utah. The project area is fully described in a current National Instrument 43-101 compliant report available for examination on and on

A map illustrating the location of target areas is available at Mesa's website at

Qualified Person

The Lisbon Valley Uranium Project is managed by Gregory French, P. Geo., a Qualified Person as defined by National Instrument 43-101 guidelines. This Press Release has been prepared and revised under the supervision of Gregory French, VP Exploration for Mesa responsible for its projects.


Foster Wilson, President and CEO

This news release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, including the likelihood of commercial mining and possible future financings are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include unsuccessful exploration results, changes in metals prices, changes in the availability of funding for mineral exploration, unanticipated changes in key management personnel and general economic conditions. Mining is an inherently risky business. Accordingly the actual events may differ materially from those projected in the forward-looking statements. For more information on the Company and the risks and challenges of its business, investors should review the Company's annual filings that are available at

The TSX Venture Exchange has neither approved nor disapproved of the contents of this news release.

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