The World Distribution of Uranium Deposits (UDEPO) is a database on technical, geographical and geological characteristics of worldwide uranium deposits. Its purpose is to provide reliable and up-to-date information on the uranium deposits in the world. The UDEPO contains information on the location of deposits, the amount of uranium and average uranium grade in the deposits, geological type of the deposits, status of the deposits, operating organizations (if the deposit is being mined) and other technical and geological details about the deposits. It covers not only operational mines but also depleted or dormant deposits in order to provide an overview of past operations and future possibilities in addition to the existing uranium production information. This publication, with attached CD-ROM, is a snapshot of the database as of the end of 2008.