Ouachitas

The Ouachitas are in the west-central part of Arkansas and south-eastern Oklahoma, and include the Ouachita Mountains and Ouachita National Forest.

Understand
The name Ouachita is pronounced /ˈwɒʃɨtɔː/ in IPA, or WOSH-i-taw; the final syllable is like the 'sas' in Arkansas (which is pronounced ARK-an-saw).