Search results
Results From The WOW.Com Content Network
The Pittsburgh coal seam is the thickest and most extensive coal bed in the Appalachian Basin; [1] hence, it is the most economically important coal bed in the eastern United States. The Upper Pennsylvanian Pittsburgh coal bed of the Monongahela Group is extensive and continuous, extending over 11,000 mi 2 through 53 counties.
The Allegheny Group, often termed the Allegheny Formation, [2] is a Pennsylvanian-age geological unit in the Appalachian Plateau.It is a major coal-bearing unit in the eastern United States, extending through western and central Pennsylvania, western Maryland and West Virginia, and southeastern Ohio.
The Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland.It is dated to the Carboniferous period.The top of the group is marked by the Waynesburg Coal (No. 11 Coal) and its base is marked by the Pittsburgh coal seam (No. 8 Coal).
This is because the section of the Pittsburgh coal seam here was famous as one of the finest metallurgical coals in the world. It is locally known as the Connellsville coal seam, but is a portion of the Pittsburgh seam. Coal was mined in this field from the early 19th century. Actual coking of the coal was first tried near Connellsville in the ...
In the early history of Pittsburgh, Mount Washington was known as Coal Hill, but Coal Hill was actually on the south bank of the Monongahela River. [1] Easy access to the Pittsburgh coal seam's outcrop near the base of Mount Washington allowed several mines to operate there. Also, rock was quarried from the hill.
In 1942, Office of War Information photographer John Collier visited the Montour No. 4 Mine of the Pittsburgh Coal Company in Pennsylvania.
The Pittsburgh Coalfield (Pittsburgh Coal Region) is the largest of the Western Pennsylvania coalfields. It includes all or part of Allegheny, Fayette, Greene, Washington, and Westmoreland Counties in Pennsylvania. Coal has been mined in Pittsburgh since the 18th century. U.S. Steel and Bethlehem Steel owned Karen, Maple Creek, and Ellsworth ...
"Anthracite Coal and the Beginnings of the Industrial Revolution in the United States". The Business History Review. 46 (2): 141– 181. doi:10.2307/3113503. ISSN 0007-6805. JSTOR 3113503. Day, James Sanders (2005). "Review of Old Dominion, Industrial Commonwealth: Coal, Politics, and Economy in Antebellum America". The Business History Review.