Botswana and 30°E. The country is predominantly flat, tending toward gently rolling tableland. Botswana is dominated by the Kalahari Desert, which covers up to 70% of its land surface. The Okavango Delta, one of the world's largest inland deltas, is in the northwest. The Makgadikgadi Pan, a large salt pan, lies in the north. The Limpopo River Basin, the major landform of all of southern Africa, lies partly in Botswana, with the basins of its tributaries, the Notwane, Bonwapitse, Mahalapye, Lotsane, Motloutse and the Shashe, located in the eastern part of the country. The Notwane provides water to the capital through
Interstate 70 called series the I-70 Series. I-70 has one of the closest distances between two distinct child interstates with the same child interstate number. I-470 near Topeka, Kansas, and I-470 on the east side of Kansas City, Missouri, are approximately apart. This record is surpassed by I-291 around Hartford, Connecticut, and I-291 near Springfield, Massachusetts, which are unrelated, but are apart. A breakdown of I-70's child routes follows: Interstate 70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to I-695 near Baltimore, Maryland. I-70 approximately traces the path