There is a sizable hydroelectric dam-building project underway that will theoretically generate enough electricity to power the three most western aimags (Uvs, Bayan-Ölgii, and Khovd).[citation needed] The city of Khovd is connected to the Russian power grid and subject to blackouts if it falls behind in its payments. Domestic and international tourism and sports hunting are a sizable industry of Khovd province. The natural environment, fresh and salt water lakes, mountains, valleys, caves, ancient rock paintings and fortresses are other sightseeing attractions.[citation needed]