Tajikistan
Pamir and Alay Mountains dominate landscape; western
Fergana Valley in north, Kofarnihon and Vakhsh Valleys in southwest

Tanzania
plains along coast; central plateau; highlands in north,
south

Thailand
central plain; Khorat Plateau in the east; mountains
elsewhere

Togo
gently rolling savanna in north; central hills; southern
plateau; low coastal plain with extensive lagoons and marshes

Tokelau
low-lying coral atolls enclosing large lagoons

Tonga
most islands have limestone base formed from uplifted coral
formation; others have limestone overlying volcanic base

Trinidad and Tobago
mostly plains with some hills and low mountains

Tromelin Island
low, flat, and sandy; likely volcanic

Tunisia
mountains in north; hot, dry central plain; semiarid south
merges into the Sahara

Turkey
high central plateau (Anatolia); narrow coastal plain;
several mountain ranges