sentences:  The upland part of the district includes a network of remote mountain villages (auls), the Estonian colony at Estosadok, and the ski resort of Krasnaya Polyana which hosted the events (Alpine and Nordic) of the 2014 Winter Olympics.Also located here are the largest trout fishery in Russia (founded in 1964) and a breeding nursery for great apes.Sochi has an ethnic Russian majority (~70%).