Colibri percussion drilling cuts near surface gold-silver-copper-lead-zinc mineralization on Leon Project

    Listed TSX-V: CBI

    VANCOUVER, Nov. 26 /CNW/ - Colibri Resource Corporation has received
assays from percussion drilling on the Leon Project, Sonora, Mexico. This
project presents multiple targets including at least 4 separate clusters of
artesanal underground mine workings. Percussion drilling is currently focused
on the Amarillas zone, a former producing mining camp. The Leon Project is
held by an option agreement between the Mexican subsidiary of Colibri, Minera
Halcones SA de CV and a private Mexican company to acquire 100% ownership of
5,800 hectares of mineral concessions.
    Drill targets on the Amarillas zone are felsic quartz porphyry dykes,
intensely altered to sericite - kaolinite and cut by quartz veins and
stockworks over exposed widths of 20-100 meters. Here at least 4
east-trending, sub-parallel mineralized dyke structures outcrop over a width
of approximately 300 meters. These silicified, sericitized dyke swarms have
been traced for more than 3 km strike length. These drill targets are believed
to be the precious metals rich zone of a large porphyry intrusive system that
includes the large copper-molybdenum rock and soil anomaly 2-3 km to the east
of current drilling, and the El Creston molybdenum deposit (see news releases
of Creston Moly Corp, TSX- CMS).
    Percussion drilling is employed by Colibri as a prospecting tool to
identify sites for follow-up core drilling. Drilling conditions on the
Amarillas zone have proven difficult, with 7 out of 15 holes terminated in
wet, clay rich zones prior to reaching expected target depths. Every hole has
cut near-surface intervals of anomalous gold, silver, copper, lead or zinc.
Two structurally-controlled zones of significant mineralization have been
identified so far. Significant intercepts from four holes are reported below.
    Percussion hole LEPD2 cut three mineralized intervals within a
steeply-dipping, east-north-east-striking dyke structure. Hole LEPD4 was
collared 40 meters from LEPD2 along strike of the same mineralized structure
and is believed to have cut the same zone of gold, silver, copper, lead and
zinc mineralization. Drill holes LEPD6, LEPD7 were collared on a separated
parallel structure 140 meters north from LEPD2 and LEPD4. Both cut
disseminated silver, copper, lead and zinc before being terminated prior to
reaching the planned target depths due to drilling conditions. Drilling is
inclined at -60 degrees, perpendicular to the strike of steeply dipping
structures, and does not necessarily reflect true width of mineralization.


    4.5-15 meters depth cut disseminated mineralization averaging 28 ppb
    gold, 40.3 gpt silver, 578 ppm copper, 1181 ppm lead, 290 ppm zinc,
    15-18 m depth averages 1.12 gpt gold, 83.5 gpt silver, 0.47% copper,
    0.24% lead, 4.3% zinc,
    22.5-25.5 m depth 0.6 gpt gold, 88.25 gpt silver, 2.04% copper,
    0.13% lead, 0.72% zinc.
    Hole LEPD2 terminated at 25.5 m depth in a 1.5 m interval of
    1.1 gpt gold, 41.5 gpt silver, 0.61% copper, 0.14% lead, 0.82% zinc.


    22.5-25.5 m depth 3 m width averages 1.53 gpt gold, 195.8 gpt
    silver, 0.19% copper, 2.2% lead, 10.5% zinc.
    Hole LEPD4 terminated at 25.5 m depth in a 1.5 m interval of
    1.67 gpt gold, 151.5 gpt silver, 0.15% copper, 2.0% lead, 8.97% zinc.


    3-12 m depth averages 13.5 gpt silver, 0.26% copper, 0.14% lead,
    0.34% zinc.
    Hole LEPD6 terminated at 7.5 m depth in 12.2 gpt silver,
    0.18% copper, 711 ppm lead, 0.24% zinc.


    3-7.5 m depth averages 14.5 gpt silver, 0.37% copper, 394 ppm lead,
    0.2% zinc,
    Hole LEPD7 terminated at 7.5 m depth in a 1.5 m interval of
    28 gpt silver, 0.7% copper, 691 lead, 0.35% zinc.

    The results demonstrate the presence of both substantial widths of 
disseminated precious plus base metal mineralization (4.5- 15 meters depth in
LEPD2, the entire length of holes LEPD6 and LEPD7), plus precious metal rich
Cu-Pb-Zn veins (22.5-25.5 meters depth in LEPD4 averages 1.53 gpt gold,
6.3 ounces per tonne silver, 10.5% zinc), an excellent combination.
    Holes LEPD2, 4, 6 and 7 were all terminated within mineralized intervals
due to drilling conditions.
    Complementary diamond core drilling on the Leon Project was initiated
November 1, 2007, in a minimum 2000 meter program conducted by Landdrill
International SA de CV.
    Air track percussion drilling utilizes a surface air driven hammer with
2.25 inch wide bit and associated compressor. Samples are typically 5 kg of
rock chips over 1.5m intervals. Each sample is split on site with a Jones
splitter and half of the sample taken to Sonora Sample Preparation Lab,
Hermosillo, Mexico, and then transported to Vancouver, B.C. by International
Plasma Labs. The remaining half of the bagged sample is stored in Hermosillo
for archival purposes.
    Exploration was conducted under the supervision of J.J. Irwin, B.Sc.,
Ph.D., the qualified person under National Instrument 43-101 on this project.

    The TSX Venture Exchange has not reviewed and does not accept
    responsibility for the adequacy or accuracy of the contents herein.

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For further information: Visit our website at or call Lance Geselbracht, P.E., (250) 755-7871

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