This report provides the program plan, costs and schedule, and engineering design specification for an in situ copper leaching field experiment at the Lakeshore Mine (now the Cyprus Casa Grande Mine) in Casa Grande, Arizona. The field experiment is based on a unit cell concept of direct scale-up to a commercial-scale design which was developed for this site using the algorithms and computer program contained in the draft generic in situ copper mine design manual. The field experiment unit cell design includes integrated testing of two 5-spots and an sx-ew plant with supporting environmental permitting activities. The field experiment has a maximum capacity of 50 gpm and 1,095 tpy copper production. The unit cell consists of a plan area of 150 by 300 ft; 150-ft producer- to-producer spacing; well depth of 1,335 ft; leach interval of 180 ft averaging 0.88 pct copper. The time frame of the field experiment is 44 months at a cost of $14,340,723.