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The San Juan property is 313 km2 in size and is a
complete mining district that covers an up-thrown block
which forms a window to the basement Jurassic to
Cretaceous Yura Group meta-sediments. This block forms a
window through the thick overlying Miocene-Pliocene
Senecca Volcanics. The Yura Group contains intrusions of
the Bella Union Complex and Coastal Batholith, both of
which are intruded by younger granodiorite stocks. The
Bella Union Complex and the granodiorite stocks have
been extensively fractured and mineralized with
gold-bearing veins and stockworks. San Juan Exploration includes the following properties:
San Juan Mine Proper, Golden Champune, Veta Clara, Santa
Clarita, Erika and San Juan Regional.
San Juan Mine Proper
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The San Juan Mine historically produced 1.2 million
ounces of gold from the San Juan and Mercedes veins.
Prior to Century’s commencement of an exploration
program in November, 2006, the property had never been
drilled. The San Juan and Mercedes veins have excellent
potential to expand both along strike and down dip.
Thirty-five additional veins that parallel and are
diagonal to the Mercedes and San Juan veins are also
well mineralized as shown by sampling in 2006 and have
similar potential to host significant gold resources.
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New access roads have been constructed and surface
drilling is testing these new veins and extensions of
the Mercedes and San Juan veins. The results of initial
surface diamond drilling (Hole 06SJ-2) at the San Juan
mine intersected 1.8 meters at a grade of 46.7 grams/tonne
(g/t) gold and 26.3 g/t silver. The true width of the
Mercedes vein cut by the drill hole was calculated to be
1.2 m at a grade of 46.7 g/t gold and 26.3 g/t silver.
The highest grades are along the upper and lower parts
of the vein and range from 71.8 to 62.0 g/t of gold.
These results are summarized in the table below:
Mercedes Vein
Samples, Hole 06SJ-2
|
Drill Hole |
Sample
Number |
Au (g/t) |
Ag (g/t) |
From (m) |
To (m) |
Intersected
Width (m) |
|
06SJ-2 |
10
|
71.8
|
82.5
|
210.30
|
210.80
|
0.50
|
|
06SJ-2 |
11
|
35.0
|
6.3
|
210.80
|
211.30
|
0.50
|
|
06SJ-2 |
12
|
8.0
|
0.8
|
211.30
|
211.65
|
0.35
|
|
06SJ-2 |
13
|
62.0
|
6.1
|
211.65
|
212.10
|
0.45
|
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Underground sampling and
development work is planned to establish additional
resources on the San Juan and Mercedes veins.
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The results of the drilling
program, assaying and other sample work for this
property will provide the basis for the preparation
of an NI 43-101 technical report. Chlumsky, Armbrust
and Meyer, LLC of Lakewood, CO have been retained to
review the results of the exploration program.

Golden Champune
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The Golden Champune property
consists of an extensive stockwork in Coastal
Batholith granodiorite covering several square
kilometers.
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The stockwork consists of sheared
alteration rims with pervasive sericite, iron oxides
and thin quartz veinlets surrounding brecciated
granodiorite fragments.
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Historic sampling returned values
of up to 3.1 g/t Au.
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Century’s 2006 sampling program
included 542 rock chip panel samples taken from the
stockwork. The samples weighed 3 to 4
kilograms and were taken from 2mx2m panels.
The sampling program was aimed
at testing the potential for a bulk tonnage gold
deposit. The program returned a maximum gold value
of 0.68 g/t Au which indicates that the stockwork
does not host a low-grade, bulk tonnage target.
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The Golden Champune property will
be re-evaluated as a potential vein system target.
Veta Clara
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The Veta Clara target is a vein
swarm and alteration system located in the southern
portion of the property with a known strike length
of over 3 kilometers.
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A small portion of the Veta Clara
property is currently being mined under an agreement
with independent miners who are working the surface
portion of one vein and transporting the ore 4
kilometers to the San Juan mill.
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A 30 meter adit has been
established on the vein.
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Sampling by Century to test the
veins and alteration zone for the presence of a
large, low grade deposit returned good grades on the
veins but failed to show significant gold grades in
the surrounding alteration. A total of 875 samples
were taken, which returned the grades given in the
following table:
|
Number of
Samples |
Grade Gm/tonne Au |
|
10 |
5.00 plus |
|
11 |
3.00 to 5.00 |
|
22 |
1.00 to 3.00 |
|
146 |
0.50 to 1.00 |
|
686 |
Trace |
Santa Clarita
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The Santa Clarita showing is
approximately one kilometer square and is hosted by
andesites within a diorite intrusive of the Bella
Union Complex.
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A total of 206 samples taken by
Peru Universidad de Ingenieria in1989 returned gold
values up to 4 g/t Au in several clusters. A ground
IP survey was also conducted but was inconclusive
due to poor ground contact at the poles.
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Minera IRL S.A. mapped and
sampled the area in 2006 and obtained moderately
anomalous values in molybdenum (maximum - 1,601 ppm),
copper (maximum - 343 ppm), and gold (maximum - 480
ppm). The property is 4 kilometers from the San Juan
Mine with road access.
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Further sampling and drilling is
planned that will determine the character of the
mineralization.
Erika
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The Erika showing is located in
the southeast corner of the San Juan property about
6 kilometers from the San Juan Mine. The property
abuts Teck-Cominco claims to the south and east,
which cover a copper porphyry discovery in similar
rocks south-east of the Erika property.
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The Erika target consists of
feldspar porphyry that has intruded quartzose
siltstones of the Yura Group.
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The Erika showing contains copper
values in the siltstones that surround the intrusive
but insufficient work has been done to date to
provide adequate geochemical coverage of the target
area.
The Company will complete a
geochemical and mapping survey over the entire two
square kilometer area of the showing to more clearly
understand the geology and mineralization.
San Juan Regional
Century intends to carry out a regional prospecting,
sampling and mapping program over the 313 km2 San Juan
property as there are other known showings on the
property that have not been well documented. These
showings are thought to be vein-style gold
mineralization and include the Lily La Huaca area and
the Northern Vein. There is no information on the Lily
La Huaca or the Northern Vein but the Northern Vein is
currently being mined by informal miners. The Northern
Vein extends for 3 kilometers on Century property;
however, this has not yet been documented by Century. |