Anthracite
61Ashland, Pennsylvania — There is also Ashland Township in Clarion County. Infobox Settlement official name = Ashland, Pennsylvania other name = native name = nickname = settlement type = Borough motto = imagesize = image caption = A view of Ashland flag size = image… …
62Molly Maguires — For the movie, see The Molly Maguires (film). Location of the counties in northeastern Pennsylvania where the Molly Maguires were active The Molly Maguires were members of an Irish American secret society, whose members consisted mainly of coal… …
63Coal Region — This article is about coal mining region in northeast Pennsylvania. For coal mining regions in general, see coal mining region. Anthracite Coal fields of Pennsylvania …
64Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
65History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… …
66Geology of Pennsylvania — The Geology of Pennsylvania consists of six distinct physiographic provinces, three of which are subdivided into different sections. Each province has its own economic advantages and geologic hazards and play an important role in shaping every… …
67Natural resource economics — Economics …
68Coaldale Big Green — Founded 1912 Folded 1933 Based in Coaldale, Pennsylvania, United States League …
69Delaware and Hudson Canal — U.S. National Register of Historic Places U.S. National Historic Landmark …
70Charbon — Pour les articles homonymes, voir Charbon (homonymie). L anthracite, forme du charbon au plus haut rang d houillification. Le charbon est un kérogène formé à partir de la …
