Mesa Uranium Corp.

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 April 23, 2007
Mesa Lisbon Valley Project Drilling Program

 Mesa Uranium Corp. (TSX.V: MZU) ("Mesa") is pleased to announce plans for the 2007 drilling program at its projects in Utah and Arizona. Drill programs have been designed for the following target areas and drilling permits have been obtained for several of the targets. Drilling planned for 2007 includes:

Lisbon Valley Project (100% owned, Utah)
  • The SE Lisbon Mine target was drilled during 2006, and Mesa's drilling discovered significant uranium mineralization. The 2007 drilling will offset mineralized holes L-4 and L-7 (see Mesa news release dated September 14, 2006). Mesa's drill results in this large prospective area validate Mesa's exploration model, which predicts potential for large uranium deposits.
  • Mesa drilled the North Alice target in 2006, and drill hole NA-3 intercepted strong uranium mineralization (see Mesa news release dated December 13 2006). The 2007 drilling will offset these successful results.
  • The Lisbon Springs target contains data from oil wells and 1970's drilling which indicate a strong mineralized trend consistent with Mesa's conceptual model.
  • Drilling is planned at the Section 2 State lease along a favorable Cutler Formation channel which trends northwest - southeast.
  • The planned drilling in the Utah State lease, Section 32 will test for shallow uranium mineralization in the Cutler Formation along the prolific trend defined by the historic Uranerz, Velvet, and Bardon uranium mines.
  • Drilling within the La Sal Uranium Mining District on the La Sal Channel will test the Salt Wash member of the Morrison Formation.
  • Drilling is planned on the west side of the Lisbon Valley Mining District, where a number of favorable uranium trends exist.

A map showing these targets can be found at the following link:
Target Summary Map

Moonshine Springs (100% owned, Arizona)

Mesa is currently planning drill programs at the recently acquired Moonshine Springs project, which has been expanded and now covers 4.8 square miles. Confirmation and offset drilling are designed to extend the strong mineralization found by Exxon and others in the 1970's (see Mesa news releases dated February 19 and April 18, 2007). Mesa has acquired a series of reports and maps relating to work performed by Exxon. Mesa geologists are using this information to design the drilling program. Mesa's drilling will offset the exciting historic drill results at Moonshine Springs, where one historic intercept contains six feet (1.8 meters) grading 0.4% U3O8 (8 pounds per ton) in a zone that remains open to the north and south, as previously reported.

About Mesa Uranium

Mesa Uranium Corp. is a uranium exploration company focused on proven uranium districts in the western United States. Mesa's lead project is the 100%-owned Lisbon Valley project in the Lisbon Valley Mining District in Utah. The District produced over 85 million pounds of U3O8, at some of the highest uranium grades in the United States, averaging 0.4% U3O8. The Lisbon Valley Mining District is located in the Colorado Plateau region, 30 miles south of Moab, in San Juan County, Utah. For further information about Mesa Uranium please visit our website at

Qualified Person

The Mesa Uranium Projects are 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, Technical Advisor for Mesa.


(signed) 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

For further information call:
Wayne Marsden, toll free 866-337-1235

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


You can view the Next News Releases item: Fri May 4, 2007, Mesa Acquires Arizona Breccia Pipe Targets

You can view the Previous News Releases item: Wed Apr 18, 2007, Mesa Acquires Additional Land at Moonshine Springs

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