Winkler Mine, Phelps County, Missouri, USAi

Regional Level Types
Winkler Mine	Mine
Phelps County	County
Missouri	State
USA	Country

This mine, located at Winkler P. 0., is situated on the eastern edge of the plateau between West Benton creek and Norman Hollow. The main workings consist of a pit 165 feet long and 145 feet wide which is reported to have been worked to a depth of 6o feet. On the west side of the pit, the ore body was worked an additional ten feet in depth. This ore is reported to extend to the east and southeast but has not been mined.

A shaft, located 75 feet southeast of the pit, encountered ten feet of red and specular ore at a depth of 85 feet. This ore was worked northward to a point beneath the pit.

Four feet of brown and red ore, overlain by three feet of quartzite and clay, is exposed in a small drift 110 feet south of the pit. The ore dips sharply to the north of east.

For a distance of several hundred feet southeast of the main workings, shallow test pits show the presence of much limonite at, and near, the surface. In this direction apparently lies the possibility of an extension of the ore body. There is no rim-rock to aid in determining the extent of the sink structure and the property deserves systematic prospecting. Two additional pits, situated 250 yards north of the principal workings, have produced several hundred tons of ore. The largest of these is 125 feet in diameter and both are filled with water. It is reported that the walls enclosing the ore body consist entirely of stratified clay. A shaft 70 feet deep, sunk 25 yards south of the larger excavation, penetrated only cherty dolomite.

This mine has been worked intermittently since the early 90's producing several thousand tons of ore. The ore consisted of red and specular hematites. Analysis of shipments ran 54.01% iron, 12.32% silica, 0.079% Phos., 0.12% Mn., and 5.00% moisture.