Orog lake is located about 100 km south of the Bayankhongor city. It's located at the end of the Tuin river and is nestled amongst Ikh Bogd mountains.Orog Lake is a saltwater lake. Water levels vary, depending on inflow from the Tuin River,which rises in the Khangai mountain range. The lake is frozen from November until May. The Tuin River creates a large wetland on north side of the lake. To the south, the lake is bordered by the slopes of Ikh Bogd Mountain, which support desert steppe, and give rise to several streams with associated wetlands. On the northern side of the lake, there is a wide sand dune which stretches along the shore. Orog Lake is located within the Valley of Lakes. n the past the lake used to dry up and it's status as a premier wetland came into doubt, however, the UNDP recently supported the Tuin river sustainable land management program. This program's aim was to plant saxaul, caragana, elms, some fruit trees and Glycyrrhiza (sweet grass) in order to decrease desertification in the area. The program has been successful. Travelling up Ikh Bogd the morning after camping at Orog Lake will provide great sunrise views of Bayankhongor.