(2) In shaft ore mining, ore and waste are carried in mine cars to the trestle where the
ore is dumped into railcars. The waste pile is nearby. In Figure 2-15 the mine was started as an
open pit, but surface mining was abandoned when the overburden became too thick, and tunnels
or shafts were driven into the face of the pit.
Figure 2-15. Shaft Ore Mining Operation.
(3) Processing of shaft mining end products takes place at distant sites; therefore,
certain transportation is required which can be related for identification purposes, i.e. mine cars
(Figure 2-16) and overhead cableways (Figure 2-17).
Figure 2-16. Shaft Mining Related Transportation.
Figure 2-17. Overhead Bucket Conveyors over Pond.