ores are known as a red fossil ore, because originally the iron accumulated in extensive beds of fragments of fossils, principally the hard parts of crinoids, bryozoans, and brachiopods. The iron, from solution in some form, was precipitated upon and within these beds of fossil fragments and thus the ore beds are simply a particular kind of sedimentary layers inclosed in ordinary sediments, shales, and sandstones, composing the bulk of the Red Mountain formation. As the fossil fragments were composed of calcium carbonate, which is the mineral that forms limestone, the iron ore beds at depth, where they are unweathered and where there has been no condition that permitted leaching of the lime content, carry a considerable percentage of lime, so that the ore is self-fluxing. Another type of ore is oolite ore, in which the iron oxide occurs in the form of small lenticular pellets. The precipitation of the iron that forms this ore started around some minute particle like a small grain of sand or fragment of fossil and built up a small lenticular body. The two kinds of ore are more or less mixed or one or the other may predominate in a particular layer of ore. – Geology of Alabama (1926) Neighborhood There are many neighborhoods that are located along the 33 miles of Red Mountain, that stretches from Sparks Gap on the southwest to Trussville in the northeast. Some of these are Raimund, Muscoda, Lipscomb, Wenonah, Ishkooda, Greensprings, Irondale, Ruffner, and Trussville. Located just southeast of downtown Birmingham, on Red Mountain, is Redmont Park, which was developed in the 1920s by Robert Jemison. It was the home to Birmingham's early bankers and iron and steel industrialists. It became one of Birmingham's most prominent neighborhoods, home to the majority of the multimillion-dollar residences and estates that are located within the city proper. The prestigious Altamont School, a private school well known for its arts and science programs, is located in the neighborhood, as well as Saint Rose Academy, a Catholic parochial school run by Dominican sisters. History The proximity of Red Mountain's ore to nearby sources of coal and limestone was the impetus to develop and promote the Birmingham District as an industrial site. The mining of iron ore along Red Mountain began in the early 1860s as the Civil War created a demand for iron necessary to sustain the Confederate war efforts. The Union army