Pulacayo Project Feasibility Study - Apogee Silver

Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report
090644-3-0000-20-IFI-100
drilling programs and completed 2 mineral resource estimates. Exploration work by Apogee
was generally focused on the Pulacayo property but IP, diamond drilling and a mineral
resource estimate were also completed on the Paca prospect located 10 km to the north of
Pulacayo. Although the Paca deposit is included within the limits of the exploration licenses,
it was not part of the current mineral resource estimate.
9.2.2 Topographic Survey
In 2006, Apogee contracted Geodesia y Topografia of La Paz, Bolivia to complete a
topography survey of the Pulacayo-Paca areas using four LEICA Total Stations, models
TCR 407, TC 703, TC 605L, and TC 600. The survey covered a total area of 24 km2 and
survey points were collected in WGS84, Zone 19 South Datum and the coordinates were
referenced to known government control points including GCP CM-43 obtained from the IGM
(Instituto Geografico Militar).
The survey points allowed the construction of a detailed topographic map for the Pulacayo
and Paca areas and two meter contour intervals were established. The new topographic
map was used as a base to establish road access, geological mapping and surface sampling
as well as for locating drill collars.
As part of the field work, Eliezer Geodesia y Topografia also surveyed the collars of all
completed drill-holes and established 12 surveyed grid lines for an Induced Polarization
survey. Seven IP survey lines were located in the Pulacayo area and 5 were located in the
Paca area. Surveyed stations were established at 50 m intervals along each line.
9.2.3 Geological Mapping and Sampling
Apogee initiated a surface mapping and sampling program at Pulacayo in 2005 and initially
utilized preliminary geological maps completed by ASC in 2003. The company completed
detailed 1:1 000 scale surface mapping that covered all exploration licenses, including both
the Pulacayo and Paca areas. The sampling consisted mostly of rock chip samples taken
from outcrops and the objective of the mapping program was to characterize the alteration
patterns and locate sulphide mineralization both at surface and also within accessible
underground mine workings. A total of 549 samples were collected from Andesita, Ramales,
Paisano, TVS and Veta Cuatro. The Andesitas and Ramales areas are located to the east of
the TVS and the Paisano area is located to the south of the TVS. Summary results of the
geological mapping program appear in Figure 9.1.
During 2006 Apogee also initiated development of a detailed, three dimensional digital
model of the historic underground mine workings based on available historic records. The
workings solid model was completed by EPCM Consultores S.R.L. (EPCM) and was
subsequently modified by Apogee through transformation of the model from the historic mine
grid to the current datum plus adjustment to include a +1% incline grade of the San Leon
tunnel.
9.2.4 Geophysical Surveys
An Induced Polarization geophysical survey was carried out by Apogee between November
and December 2007. The survey covered grid lines on both the Pulacayo and Paca areas
and the IP survey was completed by Fractal S.R.L (Fractal), a geophysical consulting
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