Cambodia
lowest point: Gulf of Thailand 0 m
highest point: Phnum Aoral 1,810 m

Cameroon
lowest point: Atlantic Ocean 0 m
highest point: Fako (on Mount Cameroon) 4,095 m

Canada
lowest point: Atlantic Ocean 0 m
highest point: Mount Logan 5,959 m

Cape Verde
lowest point: Atlantic Ocean 0 m
highest point: Mt. Fogo 2,829 m (a volcano on Fogo Island)

Cayman Islands
lowest point: Caribbean Sea 0 m
highest point: The Bluff 43 m

Central African Republic
lowest point: Oubangui River 335 m
highest point: Mont Ngaoui 1,420 m

Chad
lowest point: Djourab Depression 160 m
highest point: Emi Koussi 3,415 m

Chile
lowest point: Pacific Ocean 0 m
highest point: Nevado Ojos del Salado 6,880 m

China
lowest point: Turpan Pendi -154 m
highest point: Mount Everest 8,850 m

Christmas Island
lowest point: Indian Ocean 0 m
highest point: Murray Hill 361 m