Kirghizia, a landlocked republic in Soviet Central Asia shared its borders with Kazakhstan, Tajikistan and Uzbekistan as well as China on the outside lying between latitudes 39° and 44° N, and longitudes 69° and 81° E. It is farther from the sea than any other individual country, and all its rivers flow into closed drainage systems which do not reach the sea. The mountainous region of the Tian Shan covers over 80% of the country, with the remainder made up of valleys and basins.