Largest cities
Ulaanbaatar 1,594,000 pop.
Highest mountains
Khuiten 4,356 m (14,291 ft)
Longest rivers
Yenisey 4,167 km (2,589 mi) total, only a small initial section is in Mongolia
Kherlen 1,254 km (779 mi) total, 1,163 km (723 mi) in Mongolia
Selenga 1,024 km (636 mi) total, 615 km (382 mi) in Mongolia
Largest lakes
Uvs 3,548 km² (1,370 sq mi) total, a very small portion belongs to Russia
Khövsgöl 2,768 km² (1,069 sq mi)
Khar-Us 1,497 km² (578 sq mi)
Khyargas 1,350 km² (521 sq mi)
Largest islands
Agbash (in Khar-Us Lake) 274 km² (106 sq mi)