Nothing wrong with central hiking, how far from where you live do you want to go?
Example, 4.5 miles of Trails at Eisenhower State Park
TPWD: Eisenhower State Park
(lots of up and down the hills and steep at times ) 2.5 miles at Mineral wells SP, into the primative area then back,
Nice hike/bike trail from Highway 380 to Ray Roberts
TPWD: Ray Roberts Lake State Park - Activities, Area Attractions, and Directions
should fit close by.
further away look throught the parks web site