Trans Mara District was an administrative district in the former Rift Valley Province of Kenya. Its capital town was Kilgoris. The district had a population of 170,591 (1999 census) and an area of 2,846 km² [1]. It was created in 1994, when Trans Mara District was split from Narok District.The Mara Triangle (part of the Masai Mara reserve) is located in Trans-Mara District. The district had only one local authority, Trans Mara county council.