What is the Formal region of Texas?

The Formal Region in Texas is composed of the High Plains, the Edwards Plateau, the Llano Basin, the Gulf Coastal Plain, and the Trans-Pecos. The High Plains, known as the "Panhandle," dominates the northwestern part of the state and is characterized by rolling hills and flat lands. The Edwards Plateau covers most of the central part and features rugged landscapes with canyons and mesas. The Llano Basin, located in the central-eastern part, consists of rolling hills, valleys, and plateaus. The Gulf Coastal Plain occupies the southeastern part and encompasses various topographic features, including marshlands, prairies, and forests. Finally, the Trans-Pecos region covers the westernmost part of the state and contains desert landscapes, mountain ranges, and arid basins.