This explains the recent activity. My thoughts: They really haven't done any follow up on Burro Creek, and I'm not sure they can afford to have two foci at this stage. Burro Creek is also a property that is largely delineated -I don't think there's as much upside potential. It's just a question of whether the grade and size of the deposit would be economical. It wasn't considered so last cycle.
http://www.reuters.com/article/idAFN2012492820100420?rpc=44