RI 4894 Preparation Characteristics Of Coal From Clearfield County, Pa

- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 69
- File Size:
- 37701 KB
- Publication Date:
- Jan 1, 1952
Abstract
Early in the nineteenth century, coal from Clearfield County entered the eastern commercial market. Ashley reports that coal was moved down the Susquehanna River by ark from Clearfield to Columbia, a distance of 260 miles, as early as 18o4. Around 1850, the famous Moshannon or Lower Freeport bed was discovered. Several years later the Moshannon Basin was developed extensively, and the coal from this area soon acquired an enviable reputation as a high-quality industrial fuel. Today much of the original Moshannon Basin coal is worked out, and the Lower Kittanning bed has replaced the Lower Freeport bed as the principal source of production in southeast Clearfield County. With depletion of the thick underground deposits, the importance 'of Clearfield County as a coal Producer would have diminished rapidly, if it had not been for strip mining the thinner beds. About 60 percent of the coal produced in the county is strip-mined, and the trend toward this mining method is expected to continue as the older underground operations are exhausted. Many strip mines are working in beds that are too thin to be recovered economically by any other method.
Citation
APA:
(1952) RI 4894 Preparation Characteristics Of Coal From Clearfield County, PaMLA: RI 4894 Preparation Characteristics Of Coal From Clearfield County, Pa. The National Institute for Occupational Safety and Health (NIOSH), 1952.