first question: Coal is mainly found in three regions: the Appalachian coal region, the Interior coal region, and the Western coal region (includes the Powder River Basin). The two largest coal mines in the United States are the North Antelope Rochelle and Black Thunder mines in Wyoming.
second question:All of the geothermal plants in the United States are located in the western part of the country, mostly in California or Nevada. California has 91% of the country's steam-powered capacity, and 65% of binary-cycle capacity is found in Nevada.
