a little bit of thinking, page-58

Yes you just have to follow the thinking of one of the biggest investors in SLR still relevant 2 years on

http://news.goldseek.com/GoldSeek/1231541868.php

"ES: It depends on where they are in exploration and the sort of quality of the ore body. Im somewhat hesitant on low-grade big open pits because of the financing issues in the world. Id much rather find a high-grade underground where the development is not nearly as expensive per ounce as a big low grade open pit. You certainly dont want an ore body with a base metal component in it in the kind of situation were looking at. If somebody has a reasonable high-grade open pit, then obviously that would suit the bill, too."