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Geochemical Sampling

Highvista has collected a total of 1,134 rock chip samples since 2010 from outcrops, prospect pits, underground workings and exposures of bedrock where structures and mineralization have been observed. The majority of these samples have come from new areas on the property that had not been previously explored. Selected rock chip sample data from Highvista are shown in the table below.

Selected results from the 2010 rock chip sampling by Highvista at Canasta Dorada
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The 2010 rock chip sampling has identified significant new target areas for gold mineralization on the Canasta Dorada property where the style of mineralization may be similar to that found in the Big Pit area, as well as the nearby El Chanate mine.


Select
ed results from the 2010 rock chip sampling by Highvista at Canasta Dorada.

During 2006-2008 HDG conducted geochemical sampling at the property and collected a total of 1,203 rock chip samples primarily collected in trenches, along road cuts, and in arroyo exposures. In addition, 800 soil samples were collected in the Placer, Pique Viejo and Big Pit target areas, and 160 silt samples were collected over areas on the Basurero and Canasta concessions. The sampling conducted by HDG showed that significant gold mineralization is present at the targets on the Basurero concession, and was similar to that described from early stages in the discovery at the nearby deposits of La Choya and El Chanate, including select high-grade samples of up to 8.96 gpt gold.

During 2006, HDG conducted geochemical sampling on the trench exposures in the Big Pit area that consisted of rock chip and channel samples over lengths of 1 to 5 m, as determined by the geologist. In addition, samples were collected in areas of outcrop, where individual panel samples from 3 m by 3 m areas were collected. A summary of the 2006 sampling includes the following results:

Selected results from 2006 rock chip sampling in the Big Pit area completed by HDG
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* The 34.8 m is made up of 11 vertical chip samples, with lengths ranging from 1.2 to 2.4 metres (average length was 2.1 metres) that were collected along a 34.8 metre-long bench in the old-mine cut.

HDG determined that in the Big Pit area, significant gold mineralization was defined by surface sampling in an area measuring approximately 200 by 375 m. The average gold grade of the 143 samples collected from this area is 1.20 gpt gold, and the mineralized zone is exposed over a vertical thickness of approximately 50 m within the 200 by 375 metre area.

In 2006, a sample taken by the author in the Big Pit area from an altered felsic dike across a 3 m horizontal distance assayed 8.96 gpt gold, this compares to some of the high-grades that were found during the initial discovery at La Choya and Chanate, and demonstrates that within the Big Pit area there is potential for higher-grade gold mineralization.

During 2006-2008 an extensive soil sampling program totalling 800 samples was completed by HDG across the main three target areas, as shown in the following two figures. This program focused on the Placer and the Pique Viejo areas and has produced a significant arsenic and gold in soil anomaly covering roughly 800 by 800 m and is open to the east, south and west. Gold values up to 1,240 ppb have been reported with a total of 50 samples that have values greater than 100 ppb. Soil sampling proved very useful to identify this broad anomaly, and will be useful in evaluating other areas of the property.

Soil geochem data from HDG for arsenic and the location of drill holes
in the Big Pit, Placer and Pique Viejo areas.
Soil geochem anomaly for gold from HDG showing the three primary target areas and the drill holes completed by HDG in 2007-2008.



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