Southern Province is one of Zambia's ten provinces, and home to Zambia's premier tourist attraction, Mosi-oa-Tunya (Victoria Falls), shared with Zimbabwe. The centre of the province, the Southern Plateau, has the largest area of commercial farmland of any Zambian province, and produces most of the maize crop. The Zambezi River is the province's southern border, and Lake Kariba, formed by the Kariba Dam, lies along the province's south-eastern edge. The eastern border is the Kariba Gorge and Zambezi, and the north-east border is the Kafue River, forming its border with Lusaka Province. The Kafue Flats lie mostly within the province's northern border with Central Province. In the north west lies part of the famous Kafue National Park, the largest in Zambia. The south-western border with Western Province runs through the teak forests around Mulobezi which once supported a commercial timber industry and for which the Mulobezi Railway was built. The provincial capital is Choma. Until 2011 the provincial capital was Livingstone City. The Batonga are the largest ethnic group in the Province. A rail line and the Lusaka-Livingstone road form the principal transport axis of the province, running through its centre and its farming towns: Kalomo, Choma, Pemba, Monze, and Mazabuka. In addition to maize, other commercially important activities include sugar cane plantations at the edge of the Kafue Flats, and cattle ranching. Southern Province has the only large source of fossil fuel in Zambia, the Maamba coal mine in the Zambezi valley, served by a branch line of the railway. Demographics As per the 2010 Zambian census, Southern Province had a population of 1,589,926 accounting to 12.08% of the total Zambian population of 13,092,666. There were 779,659 males and 810,267 females, making the sex ratio to 1,039 for every 1,000 males, compared to the national average of 1,028. The literacy rate stood at 71.20% against a national average of 70.2%. The rural population constituted 75.33%, while the urban population was 24.67%. The total area of the province was 85,283 km2 and the population density was 18.60 per km2. The population density during 2000 Zambian census stood at 18.60. The decadal population growth of the province was 2.80%. The median age in the province at the time of marriage was 20.6. The average household size was 5.4, with the families headed by females being 4.6 and 5.7 for families headed by men. The total eligible voters in the province was