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Re: News Release - Monday, April 23, 2007
Mesa Uranium Lisbon Valley Project Drilling Program
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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
http://www.mesauranium.com/i/maps/Targetsummarymap.jpg

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 www.mesauranium.com.


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.

ON BEHALF OF THE BOARD
MESA URANIUM CORP.


(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 www.sedar.com

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.

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Copyright (c) 2007 MESA URANIUM CORP. (MZU) All rights reserved. For
more information visit our website at http://www.mesauranium.com/ or
send mailto:info@mesauranium.com
Message sent on Tue Apr 24, 2007 at 9:03:53 AM Pacific Time
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