Saint Helena:
Saint Helena - rugged, volcanic; small scattered
plateaus and plains

note: the other islands of the group have a volcanic origin

Saint Kitts and Nevis:
volcanic with mountainous interiors

Saint Lucia:
volcanic and mountainous with some broad, fertile
valleys

Saint Pierre and Miquelon:
mostly barren rock

Saint Vincent and the Grenadines:
volcanic, mountainous

Samoa:
narrow coastal plain with volcanic, rocky, rugged mountains
in interior

San Marino:
rugged mountains

Sao Tome and Principe:
volcanic, mountainous

Saudi Arabia:
mostly uninhabited, sandy desert