This map shows were anthracite coal is currently mined in Pennsylvania. Anthracite is the hard coal commonly used by farms and rural homesteads for inexpensive heating -- it is much hotter, drier and warmer fire then wood and last much longer a wood fire. Unlike soft coal, it burns without much soot or odor. Most of the best athracite mines are tapped out, so much of what is mined is refuse coal that is being further processed to extract useful bit of coal previously discarded.

Data Source: PASDA and Pennsylvania DCNR. Anthracite Coal Mines. http://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=366