Mesa Exploration

Published : November 14th, 2007

Extends Mineralization Around L-15 Discovery Hole - RAD Target Area Drilling

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Keywords :   Lead | Uranium | Utah |

Re:        News Release - Wednesday, November 14, 2007
Title:     Mesa Uranium Extends Mineralization Around L-15 Discovery Hole - RAD Target Area Drilling

Mesa Uranium Corp.(TSX.V: MZU) ("Mesa") reports results from the recently completed late summer 2007 drilling program at the 100%-owned Lisbon Valley uranium property in the Lisbon Valley Mining District of Southeastern Utah.

L-15 Step-out Exploration

A total of 5 holes were drilled within 150 feet of the highly mineralized discovery hole L-15 with all holes encountering uranium mineralization. As previously announced (please see news release dated 9/10/2007), L-15 encountered 3.5 feet grading 0.28% U3O8 (5.6 pounds/ton) within a larger zone grading 0.11% U3O8 (2.2 pounds/ton) over 17.5 feet. The mineralization found in L-15 was hosted in thick basal Moss Back sandstone with negligible mudstone representing a high-energy stream channel with conditions ideal for significant U3O8 deposition.

Interpretation of the geology of the current drill holes suggests thickening sandstones and uranium potential will be encountered to the north and northeast in higher-energy portions of the ancient stream channel and elsewhere along the large un-drilled northwest-southeast Lisbon Mine - L-15 trend. L-15 is located over 8,500 feet southeast of the Lisbon Mine, the largest mine in the district with historic production of 20 million pounds of U3O8. Mesa geologists are currently planning the upcoming 2008 drill program and are excited about the potential for discovery in this highly prospective area.

Results for the five L-15 step-out holes are as follows (depths are to the base of mineralization):

Hole   Depth   Thickness   eU3O8 %   Pounds Per Ton U3O8
       (feet)    (feet)
L-18   2818.5     1.0       0.03            0.6
L-19   2803.0     1.5       0.05            1.0
       2805.0     1.0       0.05            1.0
L-20   2740.0     1.0       0.11            2.2
       2749.5     1.0       0.06            1.2
L-21   2699.0     0.5       0.02            0.4
       2739.0     1.0       0.02            0.4
       2773.5     0.5       0.02            0.4
       2807.5     1.0       0.05            1.0
L-22   2808.0    13.0    anomalous    Not calculated
RAD Target Drilling

The RAD claims were staked by Mesa in 2006 along a mineral trend discovered by Homestake Mining in the 1970's and extended by Energy Fuels Nuclear in the late 1980's. Mapping based on the 1980's drilling shows a north to south trending mineral front approximately 2.5 miles long. Geologic interpretation and historic drilling by Energy Fuels Nuclear indicates 3 pods on the trend: the Alpha, Alf, and Rophe pods and shows multiple drill hole intercepts "Exceeding 0.22% U3O8" (4.4 pounds per ton).

This 2.5 mile-long mineralized front is on Mesa's 100%-owned RAD and DAR claims and will be explored in 2008. A 50-50 joint venture is currently being negotiated between Mesa and Energy Fuels Resources for exploration of the DAR claims (please see the news release dated 6/5/2007).

Mineralization on the RAD claims is hosted within permeable Cutler sandstones underlying the Moss Back sandstone. Multiple mines in the historic Lisbon Valley District southeast of the RAD claims hosted ore in these Cutler sandstones. From south to north these mines were the Bacardi, Section 2 (Mesa-owned), Reprise (Mesa-owned), and La Sal #2. Mesa geologists believe this ore was re-mobilized from the Lisbon Valley District Moss Back deposits and re-deposited in down-dip Cutler sandstones.

Results for Mesa's recent orientation drilling on the RAD claims are as follows (depths are to the base of mineralization):

Hole   Depth   Thickness   eU3O8 %   Pounds Per Ton U3O8
R-1   1,091       5.5       0.07            1.4
R-2                          Nil            nil
R-3   1,025       1.0       0.05            1.0
R-4     901       1.0       0.02            0.4
The uranium mineralization appears to be "tail" type mineralization indicating that the mineralizing front passed through these hole locations, began precipitating uranium at the top and bottom sandstone/mudstone contacts, and passed to the west where the full oxidation-reduction of the uranium took place. Mesa will perform more drilling on the RAD and DAR claims in 2008.

All holes were logged by Century Geophysical of Tulsa, Oklahoma to produce a log suite of Gamma, Spontaneous Potential (SP), and Resistivity values. The Gamma portion of the down-hole logging tool was calibrated at uranium-industry standard pits located in Casper, Wyoming. In situ uranium grades, expressed as equivalent U3O8 (eU3O8) are calculated using the digital gamma ray values acquired by the down-hole logging tool and uranium industry standard techniques for gamma log interpretation. Down-hole gamma log interpretation has historically been found to be an accurate representation of in situ grades for uranium mineralization in the Lisbon Valley District. Drilling was performed by Bob Beeman Drilling of Moab, Utah.

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, 28 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

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.


(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.

Copyright © 2007 MESA URANIUM CORP. (TSX.V: MZU) All rights reserved. For more information visit our website at or send email to ..
Message sent on Wed Nov 14, 2007 at 8:53:16 AM Pacific Time

Mesa Exploration

ISIN : CA59064J1075
CUSIP : 59064J107
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Mesa Exploration is a uranium exploration company based in Canada.

Mesa Exploration holds various exploration projects in USA.


Mesa Exploration is listed in Canada and in United States of America. Its market capitalisation is CA$ 967 288 as of today (US$ 726 356, € 661 565).

Its stock quote reached its highest recent level on February 11, 2011 at CA$ 1.49, and its lowest recent point on February 19, 2016 at CA$ 0.01.

Mesa Exploration has 16 121 460 shares outstanding.

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Corporate Presentations of Mesa Exploration
10/3/2007 Updated In Jay Taylor's Energy Newsletter
Financings of Mesa Exploration
6/24/2013Non-brokered Private Placement
3/23/2012Closes Non-brokered Private Placement
2/29/2012Announces Non-Brokered Private Placement
6/10/2011Announces 100% of Warrants Exercised
2/18/2011Announces Non-Brokered Private Placement
11/25/2009Announces Private Placement
11/20/2009Closes Private Placement with Pinetree Resource Partnership
11/10/2009Announces Private Placement
7/23/2008Announces Closing of Private Placement
5/30/2008Announces Private Placement
4/12/2007Closes $3 Million Private Placement
Nominations of Mesa Exploration
4/5/2012Announces Changes to the Board of Directors
Project news of Mesa Exploration
9/22/2016Agrees to Sell the Sal Rica Project
11/13/2012Acquires Gold and Silver Projects
7/31/2012Permitting Update for the Bounty Potash Project
5/16/2012Receives Utah Congressional Delegation Support for the Bount...
3/26/2012(Moonshine Springs)Drilling Confirms Uranium Zone at Moonshine Springs Project
2/22/2012(Moonshine Springs)Commences Drilling Program at Moonshine Springs Uranium Proj...
1/31/2012Acquires the Bounty Potash Project
1/25/2012(Moonshine Springs)To Drill Moonshine Springs Uranium Project
10/26/2011Acquires Seismic Data for Utah Projects
6/22/2011Receives Metallurgical Report for Lithium, Potash Project
2/9/2011(Green Energy)Retains North American Exploration Inc. for the Green Energy...
2/3/2011(Holbrook)JV Partner Passport Potash Commences Geophysical Survey at H...
2/2/2011(Lone Star Utah)Acquires Uranium Leases
6/21/2010(Moonshine Springs)Receives Drilling Permit at Moonshine Springs, Arizona
12/17/2009(Green Energy)Update
3/17/2010(Green Energy)Expands the Project
4/20/2010(Green Energy)Initiates Permitting for Green Energy Lithium Project
5/7/2008(Moonshine Springs)Conducts Radon Survey at Moonshine Springs, Arizona
Corporate news of Mesa Exploration
7/13/2016Favorable Lithium Brine Assay Results From Sal Rica
6/23/2016Acquires Sal Rica Lithium Brine Project
5/25/2016Closes Green Energy Mineral Brine Transaction
12/22/2015Re-acquires Green Energy Mineral Brine Project
12/22/2015Mesa Exploration Re-Acquires Green Energy Mineral Brine Proj...
12/17/2015Mesa Exploration Updates Four Utah Potash Projects
12/17/2015Updates Four Utah Potash Projects
6/13/2013Files Amended Technical Reports on SEDAR
4/25/2013Clarifies Technical Disclosure
3/12/2013Corporate Update
9/12/2012Reports Technical Disclosure Review and Refilling of MD&A
5/17/2012Bounty Potash Video
5/9/2012Bounty Potash Update
3/8/2012(Holbrook)Receives $300,000 Payment for Holbrook Basin
2/16/2012Files NI 43-101 Technical Report on the Bounty Potash Projec...
9/20/2011Retains Consulting Group for Potash and Lithium Drilling Sup...
8/3/2011Acquires Potash Lease in Utah
7/27/2011Commences Potash Exploration
5/4/2011Files NI 43-101 Report on Utah Potash Projects, Indicates Pr...
4/19/2011Engages IntelliMet
4/7/2011Acquires Potash Projects
3/23/2011(Green Energy)Files 43-101 Report, Expands the Green Energy Project
11/30/2010Unaware of Any Material Change
7/14/2010Signs Letter of Intent on the Holbrook Potash Project
11/4/2009Acquires Lithium Project
5/27/2009Acquires Additional Potash Projects in Utah
1/22/2009Acquires Potash Exploration Permits in Arizona
9/15/2008Acquires Utah Potash Project, Consolidates Shares
5/22/2008Signs Definitive Joint Venture Agreement with Energy Fuels
2/26/2008Expands Land Holdings, Forms WellProbe Geophysical With New ...
1/8/2008 Drills Significant U3O8 In Arizona
11/15/2007 Begins Drilling Moonshine Springs Uranium Project in Arizon...
11/14/2007 Extends Mineralization Around L-15 Discovery Hole - RAD Tar...
10/4/2007Begins Step-out Drilling On Uranium Discovery
9/10/2007Drills 17.5 Feet Grading 0.11% U3O8
7/4/2007Retains AGORACOM To Provide Investor Relations
6/27/2007Signs Second LOI with Energy Fuels Inc.
6/18/2007Begins Drilling At Lisbon Valley Project
6/5/2007Signs LOI with Energy Fuels Inc.
5/4/2007Acquires Arizona Breccia Pipe Targets
4/24/2007Lisbon Valley Project Drilling Program
4/18/2007Acquires Additional Land at Moonshine Springs
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