Mesa Uranium Corp.
TSX VENTURE : MZU

Mesa Uranium Corp.

October 04, 2007 13:00 ET

Mesa Uranium Begins Step-Out Drilling on Uranium Discovery

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Oct. 4, 2007) - Mesa Uranium Corp. ("Mesa") (TSX VENTURE:MZU) is pleased to announce that step-out drilling around discovery drill hole L-15 has commenced. This drilling is within our 100%-owned Lisbon Valley uranium property in Southeastern Utah.

The principal goal of this step-out drilling is to delineate additional mineralization and to confirm lateral continuity in the area surrounding the recently drilled L-15 discovery drill hole. The secondary goal is to strengthen our geologic understanding of the zone to aid in directing further step-out drilling efforts.

As previously reported (news release dated 9/10/2007) drill hole L-15 intercepted three strongly mineralized zones consisting of, top to bottom:

- 1.5 feet of 0.13% U3O8 (2.6 pounds/ton);

- 1.0 foot of 0.16% U3O8 (3.2 pounds/ton); and

- 3.5 feet of 0.28% U3O8 (5.6 pounds/ton);

All three higher-grade intercepts resulted in an overall mineralized interval of 17.5 feet grading 0.11% U3O8 (2.2 pounds/ton). The mineralization in L-15 is similar to the material mined at the Lisbon Mine, the District's largest mine (22 million pounds of U3O8). L-15 was drilled 8,000 feet east of the Lisbon Mine in an un-drilled area along Mesa's projected southeast to northwest trend.

Mesa is pursuing the concept that 1/2 of the Lisbon Valley District has remained buried and undiscovered on the down-faulted, eastern flank of the Lisbon Valley anticline. Wildcat drilling in 1968 validated the concept of ore deposits on the downthrown side with the discovery of the District's largest mine, the Lisbon Mine, which produced 22 million pounds of U3O8 at a grade of 0.4% U3O8. Ore deposits in the District were flat-lying, elongate, tabular deposits averaging 200-500 feet in width and 1,000 to 3,000 feet in length. These deposits pre-date all faulting and are not structurally controlled.

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, 30 square mile 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 www.mesauranium.com.

Qualified Person

This Press Release has been prepared and revised under the supervision of Gregory French, P. Geo., Technical Advisor for Mesa. a Qualified Person as defined by National Instrument 43-101 guidelines.

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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