Simplify the following text for a Grade 7 native English-speaking person.
Original: Gaborone is situated at between Kgale and Oodi Hills , on the Notwane River in the southeastern corner of Botswana , and 15 k from the South African border Gaborone is surrounded by the following cities : Ramotswa to the southeast , Mogoditshane to the northwest , and Mochudi to the east , and Tlokweng across the river . Most of them are commuter towns for Gaborone .
Simplified: Gaborone is located on the Notwane River in the south eastern corner of Botswana .