Etta, South Dakota

London, England in order to raise support for the company. However, the company dissolved after a lawsuit, and the mine ceased operation until 1898. That year, the mine began producing spodumene, a lithium ore, and became well known for its huge crystals. The largest spodumene crystal in the world was found in the mine. Until about 1900, Etta had the only post office in the Keystone area, and by that time, its population was 24.^[3] In the 1920s, the mining operations flourished.^[2] The mine shut down in 1959, and the town was eventually abandoned.^[4] All that remains are the foundations of the smelter and mill, as well as the mine itself.^[3]