It appears that someone has been mining it. According to the news release that was put out in December 2012, it was stated that some Marcial guy was mining it??

-Explore for high-grade gold in deep, down-plunge extensions of the steeply-plunging gold-bearing “ore shoots” in the A-4, C-2 and Poderosa veins. The “ore shoots” in these veins were thoroughly exploited by independent miners in past years, but production was limited to a few tonnes per day (Marcial Portocarrero, 2012).

-Subject to the availability of additional capital, St. Elias intends to complete the National Instrument 43-101 compliant resource estimate on the waste rock dumps [by mid-2014]. These dumps are unusual because they were left behind by informal miners who rejected any material that was visually estimated to grade less than 15 g/t gold (pers. com., Marcial Portocarrero, 2012).

http://steliasmines.com/?p=1894

pers comm