Narok (sometimes referred to as Narok Town) is a town west of Nairobi that supports Kenya's economy in south-west of the country, along the Great Rift Valley. Narok is the district capital of the Narok County and stands as the major centre of commerce in the district. Narok has a population of around 40,000 people, mostly Maasai. The Maasai, natives of Narok district, refer to Narok as Enkare Narok (meaning black water or dark water) named after, Enkare Narok, the river flowing through Narok town. The Maasai are an ethnic group of semi-nomadic people inhabiting southern Kenya and northern Tanzania. They are among the best known local populations due to their distinctive customs and dress. The Maasai speak Maa, but are also educated in the official languages of Kenya and Tanzania, Swahili and English.