DRAFT - Subsidence Monitoring Plan
Subsidence is a slow and gradual process that is predicted, closely monitored and controlled. Mining will start from a point away from Apache Leap, and after 40 years of block-cave mining, projections are that the subsidence zone will be at its deepest (1,100 feet) but will still be more than 1,100 feet from the Leap after mining has ceased.
Tshisens, J. 2018a. DRAFT - Subsidence Monitoring Plan. CCC.03.-11121-EB-REP-0001. Superior, Arizona: Resolution Copper. May.