Martinique
lowest point: Caribbean Sea 0 m
highest point: Montagne Pelee 1,397 m

Mauritania
lowest point: Sebkha de Ndrhamcha -3 m
highest point: Kediet Ijill 910 m

Mauritius
lowest point: Indian Ocean 0 m
highest point: Mont Piton 828 m

Mayotte
lowest point: Indian Ocean 0 m
highest point: Benara 660 m

Mexico
lowest point: Laguna Salada -10 m
highest point: Volcan Pico de Orizaba 5,700 m

Micronesia, Federated States of
lowest point: Pacific Ocean 0 m
highest point: Dolohmwar (Totolom) 791 m

Midway Islands
lowest point: Pacific Ocean 0 m
highest point: unnamed location 13 m

Moldova
lowest point: Dniester River 2 m
highest point: Dealul Balanesti 430 m

Monaco
lowest point: Mediterranean Sea 0 m
highest point: Mont Agel 140 m

Mongolia
lowest point: Hoh Nuur 518 m
highest point: Nayramadlin Orgil (Huyten Orgil) 4,374 m