Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sadiola is a town and commune in western Mali, south of Kayes. It is home to the largest gold mine in West Africa, the Sadiola Hill gold mine operated by Anglogold-Ashanti. As of 1998 the commune had a population of 16,678. Telephone service is offered to residents of Sadiola. The commune is in the process of acquiring electicity service. Kayes is a city in western Mali on the River Senegal, with a population of roughly 100,000 people. Kayes is the capital of the administrative region of the same name. The name "Kayes" comes from the Soninké word "karré," which describes a low humid place that floods in rainy season. The city is located 317 miles (510 km) north-west of the capital Bamako.