Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.
Explanation of how the Index is Developed The PBCo Mining Equipment Index is a measure of the quarterly evolution of surface mining equipment shipments worldwide. It relies on data from Parker Bay's Mobile Mining Equipment Database and encompasses the same product range covered by the Database*.
Early Coal Mining in the Anthracite Region (PA) (Images of America) [John Stuart Richards] on . *FREE* shipping on qualifying offers. Four distinct anthracite coal fields encompass an area of 1, 700 square miles in the northeastern portion of Pennsylvania.