The lower part of the concentrator building was utilized for service and sup- port facilities related to mine, mill, and transportation operation and comprises a total of 100,000 square feet on four levels.
A casual visitor to the property could not help but be somewhat overcome again by the immensity and complexity of the building as it took some time to sort out the location of the various offices, labs, repair areas, and so on.
Mill offices and metallurgical laboratories were located at the 2540-ft. level - the same elevation as the flotation pump floor. The 20-ft. control bay between the grinding and flotation sections, mentioned in the text above, had five floors extending for the full width of the concentrator building and was used for a number of service and utility functions.
The bottom bay at the 2460-ft. level was partially used for concentrate storage as described. The remainder of the level was occupied by the railroad terminus and repair facilities, the machine shop and warehouse and receiving.
On the 2480-ft. level, the floor was allocated entirely to personnel -change rooms, mine offices, locker and dry facilities. On the 2500-ft. level were surface change rooms with lockers, lunch room, and first-aid room, vehicle parking and heating-ventilation equipment, auto- motive servicing, storage, etc. In this section also were the lime-mixing equipment and rotary dryer, and on the mezzanine, facilities for reagent mixing and storage.
Altogether, this was a very compact arrangement and the fact that all these facilities were housed under one roof with easy and under-cover access to mine and mill, assured continued and efficient attention to the details of running a project of this magnitude.
