Ann: Quarterly Activities/Appendix 5B Cash Flow Report, page-21

You will have to dig deeper for that, I'm not doing it again. Grades are quite low in the lights dumps, but it is very large and just sitting there(no mining cost) and $$per ct are high. Grades of E9 and E12 alluvials are pretty decent and easy mining with minimal overburden. Note the proposed plant position, lights stock piles could act as a base load feed 24/7 mixed with the higher grade alluvial gravels.
Was it in the quarterly it was mention resource estimates were being done, so news to answer your questions may not be far away.