Rift Valley (ASX: RFV) is a mineral exploration company with an exciting package of tenements in highly prospective areas of Tanzania.Tanzania provides one of the most attractive investment environments in Africa following its embrace of open-market economic policies starting in the mid 1990's. It is a politically stable democracy, follows a British legal system, and has a rich endowment of mineral resources. The Lake Victoria Gold Field, where the Rift Valley holds the majority of its gold properties, has led Tanzania from virtually no production in 1998 to being the 3rd largest producer of gold in Africa today.Rift Valley's extensive local knowledge and access to new project opportunities offers investors direct exposure to the growth in Tanzania's mineral industry.