The 3 primary crushers on the main crusher floor below the tipples. These were 36 x 48 inch Jaw crushers with 8-inch open settings. These crushed plus 4-inch size mine run feed from the tipple hopper and fed it to a series of grizzlies (coarse bar screens) and vibrating screens that segregated the ore by size. To allow for maintenance, two crushers worked, while one was held in reserve. The entire mill was similarly engineered to avoid shutdowns caused by equipment failure.