 A mine fire known as the Laurel Run mine fire started burning in the watershed of Solomon Creek since 1915 , when a miner accidentally left a carbide lamp hanging from a timber support in the Red Ash Coal Mine . The lamp caused the support to catch fire . The fire may continue into the 22nd century . The fire was contained in 1973 , but was not extinguished . Had the fire not been contained , it would have eventually spread under the entirety of the Wyoming Valley . The fire burns between 200 feet ( 61 m ) and 300 feet ( 91 m ) underground at a temperature of approximately 1 @,@ 000 ° F ( 538 ° C ) . 
