April 6, 2006 - American Bonanza Gold Corp. (TSX: BZA) (“Bonanza”) is pleased to announce that it
has commenced drilling at its 100% owned La Martiniere gold project located 600 kilometers northwest of
Montreal in Northern Quebec. Six core holes (totaling 1,075 meters) of a planned 10 drill hole program have been
completed with assays results pending.
The La Martiniere property covers approximately 3,000 hectares and is located between the Detour Lake Gold
mine (which hosts more than 2 million ounces of gold), 40 kilometers to the west, and Bonanza’s Fenelon project,
located 30 kilometers to the east. The Detour Lake gold mine, La Martiniere, Fenelon and the Matagami
polymetallic mining district all lie along the same main break (Detour Lake-Fenelon Break) in the same package of
The Detour Lake-Fenelon Break is part of the Abitibi Greenstone Belt, host to over 150 million ounces of gold that
is generally hosted in breaks or shear zones similar to the Detour Lake-Fenelon Break. The Detour Lake-Fenelon
Break is hosted within altered Archean metasedimentary and metavolcanic rocks that are very similar to those
hosting gold deposits across the Abitibi Greenstone Belt. These Archean sequences typically host world class
massive sulfide deposits in addition to large high grade gold deposits. The Matagami massive sulfide deposit is
located 75 kilometers east of La Martiniere on the Detour Lake-Fenelon along the same rock units.
Twenty-three drill holes totaling over 4,100 meters were drilled at La Martiniere prior to 2001 by International
Taurus Resources Inc. and Cyprus Canada Inc. which pre-dates National Instrument 43-101. This drilling
discovered several high grade gold intercepts associated with quartz-carbonate veining. The best intercepts from
that program include 14.4 grams per tonne of gold over 4.2 meters with the nearest drill hole along strike over 300
meters away, and 9.3 grams per tonne of gold over 0.7 meters, and 9.2 grams per tonne gold over 1.0 meters, and
5.9 grams per tonne of gold over 6.5 meters, as previously announced. Previous drilling was located on wide
spaced centers with little follow-up drilling to define the continuity and geometry of mineralized quartz-arbonate
veins and gold mineralized shoots.
Bonanza’s drilling program is designed to test lateral and depth extensions of the previously discovered gold
mineralization. The current drilling program will fill in between previous significant gold intercepts along strike
and down dip, confirm the previous drill results with twin holes to the previous high grade intercepts, and test
previously un-drilled geophysical anomalies. The original discovery at La Martiniere was the test of an IP
anomaly. Typically discoveries in this part of the Abitibi Greenstone Belt are the result of geophysical exploration
due to the extensive glacial till cover in the region.
Bonanza is continuing the remainder of its 22,000 meter drill program at its 100% owned Fenelon gold project and
is currently focusing on following up the recently announced positive drill results.
The Fenelon Project is managed by Bonanza’s Aline Leclerc, P. Geo. (OGQ) and Denis Tremblay, P. Eng., under
the technical supervision of Jean Lafleur, P. Geol. (OGQ), supported by Alain Carrier, P. Geol. (OGQ) and Carl
Pelletier, P. Geol., both from Innovexplo inc. of Val-d’Or (Quebec), all Qualified Persons as defined by National
Instrument 43-101 guidelines. All assaying and whole rock geochemistry is processed at the ALS-Chemex
laboratory in Val-d’Or (Quebec). A Quality Assurance and Quality Control Assay Protocol has been implemented
by Innovexplo. This Press Release has been prepared and revised under the supervision of Jean Lafleur, P. Geol.
(OGQ), the Company’s principal consultant for its Quebec projects.
Field samples received at the laboratory are weighed and bar coded, dried, then individually crushed 70% to
under 2 millimetres; followed by pulverization (85% to 75 microns or -200 mesh) of a 250 gram split. The
pulverized material is analyzed by the Atomic Absorption method (for the 5 to 10,000 ppb gold range) and the
Fire-Assay method with gravimetric finish for assays over 1,000 ppb gold. Quality control samples are added to
the assaying process. For Atomic Absorption, there is 1 blank, 1 control standard and 2 duplicates added to each
batch of 36 pulverized samples. For Fire-Assay, there is 1 blank, 2 control standards and 3 duplicates added to
each batch of 84 pulverized samples. Whole-rock geochemistry is done by either (1) X-Ray Fluorescence for Major
Elements, LOI, Zr, Y, Nb, Rb, Sr, and Ba following fusion of pulverized material with lithium borate into a glass
pellet; or (2) HNO3 / HCL digestion of pulverized material followed by ICP-AES analysis for 34 elements.
Bonanza is a gold company engaged in the acquisition, exploration and development of high-grade gold properties
located in the United States and Canada. Bonanza is advancing both its high-grade Copperstone gold project in
Arizona and the Fenelon gold project in Quebec. Bonanza has 85.8 million shares outstanding and is well financed
with no long-term debt. For additional information about Bonanza please visit our website at www.americanbonanza.com
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 filing on Form 20F with the United States Securities
Commission and its home jurisdiction filings that are available at www.sedar.com
For further information call:
Ascenta Capital Partners Inc.
Attention: Bruce Korhonen
Toll free: 1-866-684-4743 ext. 30
Email: [email protected]
Wayne Marsden, toll free (877) 366-4464