Ruaha National Park is a national park in Tanzania. The addition of the Usangu Game Reserve and other important wetlands to the park in 2008 increased its size to about 20,226 km². The park is about 130 kilometres west of Iringa. The park is a part of the 45,000 square kilometres Rungwa-Kizigo-Muhesi ecosystem, which includes the Rungwa Game Reserv…Ruaha National Park is a national park in Tanzania. The addition of the Usangu Game Reserve and other important wetlands to the park in 2008 increased its size to about 20,226 km². The park is about 130 kilometres west of Iringa. The park is a part of the 45,000 square kilometres Rungwa-Kizigo-Muhesi ecosystem, which includes the Rungwa Game Reserve, the Kizigo and Muhesi Game Reserves, and the Mbomipa Wildlife Management Area.