From Pulaski, TN here are some options to go to the West/Southwest along with some 4-wheeling:
Big Bend Nat'l Park - 1180 miles via I-30/I-20 to Monahans, TX then SR18 south to US385. However, there would be no convenient airport nearby.
Grand Canyon - South Rim - 1525 miles via I-40
1855 miles via I-20/I-10/I-17
Moab, Utah - 1555 miles via I-24 North to I-64 to I-70
1618 miles via I-40 to Gallup, NM to 491 North to 191 North
Moab is the ultimate for 4-wheeling of all abilities. There's also Arches Nat'l Park and Canyonlands Nat'l Park to explore.
