Geography of Illinois before the dinosaurs. Galena, a lead ore, has been mined in the northwest corner of the state. The ore was processed around Peru, Illinois, where river transport was available to bring the ore to a source of coal. About six tons of coal are needed for each ton of ore. Fluorite, calcium fluoride, is the state mineral. It is mined in the southeastern portion of the state, around Metropolis. Fluorine gas is produced from fluorite. This is used in the production of uranium hexafluoride in Metropolis, Illinois for use at the gaseous diffusion plant in Paducah, Kentucky. Geodes can be
Galena, Alaska in the few last remaining dry parts of town. The flood dike the Air Force built around the runway managed to keep the river from inundating the runway and GILA. Efforts are currently underway to help Galena rebuild, with the assistance of the Federal Emergency Management Agency and volunteer groups. Galena is located at (64.740643, -156.885462). Galena is located on the north bank of the Yukon River, east of Nulato. The Innoko National Wildlife Refuge is southwest of Galena. According to the United States Census Bureau, the city has a total area of , of which, of it is land