Here’s an interesting, rare offroad vehicle built specifically for Mining. I first discovered it at Hemmings and then ran across a detailed story about it at OEMOffHighway.com. I couldn’t find any more pics or information about them.
From OEMOffHighway.com, “The Ensign 100 was rated at 1.5 tons and was built around a frame made from 2x4x0.25 in. steel tubing, on to which a body fabricated from 1/4, 3/16 and 1/8 in. plate steel was welded. The standard power plant was Ford’s 52 hp, four-cylinder 192D diesel industrial engine, although Deutz or Perkins could also be ordered.”