Mesa Uranium Corp.
TSX VENTURE : MZU

Mesa Uranium Corp.

May 04, 2007 11:39 ET

Mesa Uranium Acquires Arizona Breccia Pipe Targets

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - May 4, 2007) - Mesa Uranium Corp. (TSX VENTURE:MZU) ("Mesa") is pleased to report that the company has increased its landholdings in the Arizona Strip Uranium District. Thirteen exploration permits have been acquired from the State of Arizona consisting of 7,585 acres (12 square miles) in Mohave and Coconino counties of northern Arizona.

The area, known as the Arizona Strip district, had historic uranium production of over 20 million pounds at an average grade of 0.65% U3O8. These high-grade underground mines were discovered and mined in the 1980's and contained some of the highest grade and most profitable uranium mines in the United States. The deposit style is referred to as solution-collapse breccia pipes. These pipes were formed when sediments above deeply buried limestone caves collapsed, caving upwards several hundreds of feet, creating a chimney or pipe-like zone of broken rock (breccia). Mineralized fluids moving through this breccia deposited uranium and other metals at certain horizons in grades and quantities sufficient to mine economically.

As a result of these acquisitions Mesa now controls 10,600 acres (16.5 square miles) of prospective land in the Arizona Strip Uranium District.

Current exploration efforts by Mesa geologists consist of mapping, geochemical sampling and aerial photographic interpretation designed to identify drilling targets. Planning is being done for a ground geophysical program this year to aid in the identification of collapse features associated with breccia pipes.

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 Utah, where drilling continues to identify new uranium mineralization, as previously announced. 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% 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 www.mesauranium.com.

Qualified Person

The Arizona Strip Uranium Project is under the supervision of 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 responsible for its projects.

ON BEHALF OF THE BOARD

MESA URANIUM CORP.

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 www.sedar.com.

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

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