Mine captain shows worker the proper way of tying dynamite on a stick at Zinc mine in Franklin,NJ. Worker climbs up the chute and places the dynamite to blast the chunks out of the way.
Zinc mine worker pulls a chute car carelessly at zinc mine in Franklin,New Jersey. The worker gets squeezed in between the car and a timber post.
Two mine workers push chute car loaded with zinc-ore on track at the zinc mine in Franklin,New Jersey. End-door of the chute car opens and the ore is dumped.
Mine workers secure a mine-back(ceiling) at zinc mine in Franklin,NJ. Workers use timber trusses and blocks to secure the back while zinc ore is being drained from the stope.
Mine workers trim loose ground and large chunks with pick-axes and iron rods at zinc mine in Franklin,NJ. Workers forget to trim muck-pile and huge chunk collapses. Shift boss orders miners to get out in time and avoid an accident.
Electric haulage train stops beneath a chute at zinc mine in Fanklin,New Jersey. Mine worker loads haulage cars with zinc ore through chute. Train approaches a shaft deposit pit. Ore is dumped into the pit from car's gates.