Galena, Kansas taking the present name of Galena in 1877, which is named after the lead ore galena found in the area. The city was part of the tri state mining area and had over 30,000 inhabitants. After the mines closed in the 1970s, population decreased. The Jayhawk Ordnance Works northwest of Galena, built during World War II, was a large ordnance plant producing ammonium nitrate. After the war it was privatized by its operator Kenneth Aldred Spencer and at one point was the world's largest producer of ammonium nitrate fertilizer in the world. It would form the basis for the Spencer
Silver Valley (Idaho) the Coeur d’Alene District veins. Galena is present in veins throughout the district. Sphalerite ((Zn,Fe)S) is the second most important ore mineral, present in at least small amounts in most veins. The sphalerite is an important source of zinc throughout the ore belts. The third most abundant ore mineral is tetrahedrite (Cu,Fe)SbS. However, the tetrahedrite is responsible for the majority of the silver produced by the Silver Valley, as it’s the tetrahedrite interspersed in the galena of the district that makes it so argentiferous. There are two alpine ski areas in the Silver Valley, both easily accessible from I-90. Lookout