The primary Ozark mountain range in Missouri are found in the southeast of the state and are known as the Saint Francois Mountains, of which Taum Sauk is the highest point of both the Saint Francois mountains and of the state of Missouri. Other areas of the Ozark Highlands in Missouri include the Osage-Glasconade Hills, Salem plateau, Springfield plateau, and the River Hills ecoregions.

In the State of Arkansas, the entire northern section of the state have large areas that are included in the Ozark Highlands which include the Springfield Plateau, Salem Plateau and River Hills ecoregions.

The Saint Francois mountains are the highest area of the Ozark mountain range in Missouri.

This area of the Ozark Highlands include the Missouri river and Mississippi river which border areas along the eastern and northeastern flanks of the Saint Francois mountains.

Taum Sauk Mountain