The Iron Mountains of Missouri.
PROF. WATERHOUSE, in a recent paper on the resources of Missouri, gives the following description of the Iron Mountains for which that State is so famous: “Shepherd Mountain is 660 feet high. The ore contains a large percentage of iron. The height of Pilot Knob above the Mississippi river is 1,118 feet. Its base, 581 feet from the summit, is 360 acres. The upper section of 141 feet is judged to contain 14,000,000 tons of ore. The elevation of Iron Mountain is 228 feet, and the area of its base 500 acres. The solid contents of the cone are 230,000,000 tons. It is thought that every foot beneath the surface will yield 3,000,000 tons of ore. At the depth of 150 feet, the artesian auger was still penetrating solid ore. These mountains contain enough ore above the surface to afford for 200 years an annual supply of 1,000,000 tons. The iron is strong, tough, and fibrous.”