Bolero Begins 5,500 Metre Drill Program At Bald Butte



    VANCOUVER, June 21 /CNW Telbec/ - United Bolero Development Corp. (the
"Company" or "United Bolero"), (TSX-V: UNB) is pleased to announce that the
5,500 metre (18,000 feet) diamond drill program at Bald Butte has commenced.

    Diamond Drill Program:
    ----------------------

    Ruen Drilling, Inc. of Clark Fork, Idaho has been on site for the last
week and, working with UNB personnel, has prepared all of the drill pads for
the planned drill program. Drilling is being conducted in two ten-hour shifts
per day. Currently at the end of the June 19, 2007 night shift, approximately
630 feet of core has been drilled. A core logging facility has been prepared
in Silver City, Montana approximately nine miles east of the Bald Butte
property. The core is being sawed and geologically logged prior to shipment of
one half of each sample interval to ALS Chemex Laboratories for analysis.
Additional geologic mapping is also being conducted over portions of the Bald
Butte property.

    Previous Work on Bald Butte:
    ----------------------------

    The deposit currently shows a NI 43-101 inferred resource of
105 million tons at a grade of 0.071% Molybdenum (0.12% MoS2) which was
calculated using the polygonal method, containing 150 million pounds of
Molybdenum, (250 million pounds of MoS2) as stated in the press release dated
December 14th, 2006
(http://www.unitedbolero.com/index.php?page=newsdetail&newsfile=unb_20061214.h
tm).
    This NI 43-101 resource was prepared by Broad Oak Associates (an
independent) and the Company is now undertaking the program recommended in
this Technical Report to increase the geological knowledge of the deposit. The
Bald Butte Project is located 18 miles northwest of Helena, Montana in Lewis
and Clark County.

    John Childs, Ph.D., Registered Geo (AZ) is the "qualified person" (as
such term is defined by NI 43-101) responsible for the preparation of the
technical information in this release.

    Corporate Update:
    -----------------

    United Bolero Development Corp. is pleased to announce it will hold its
Annual General Meeting of the Shareholders on Monday July 9th, 2007 at      
11:00 a.m. (local time) at Suite 890-999 West Hastings Street, Vancouver,
British Columbia.

    United Bolero is listed on the TSX-Venture Exchange under the symbol UNB,
as well as the Frankfurt Exchange under U7N. For more information, please
visit www.unitedbolero.com or call toll-free 888-945-4770.

    On behalf of the Board of Directors

    "R. Bruce Duncan"
    President & CEO

    The TSX Venture Exchange does not accept responsibility for the adequacy
    or accuracy of this release.




For further information:

For further information: Renmark Financial Communications Inc.: Henri
Perron: hperron@renmarkfinancial.com; Jason Roy: jroy@renmarkfinancial.com;
Media - Adam Ross: aross@renmarkfinancial.com; (514) 939-3989, Fax: (514)
939-3717, www.renmarkfinancial.com

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BOLERO RESOURCES CORP.

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