You did not state over land or by air. By air the Gulf of Mexico just south of Mississippi. Pass Christian, MS
It crosses the US on an east/west line near these places: -- Ruidosa (Presidio), Rock Springs, & Kerrville, TX -- Bush Intercontinental Airport in Houston TX -- Port Arthur TX -- New Iberia, Kenner, & New Orleans, LA -- 11 miles south of Panama City FL -- 24.7 miles north of Gainesville FL -- 22.7 miles south of Jacksonville FL .
There were two. Austin, TX and Tallahassee, FL
these bamas do what they want in the south ms,al,ark,tn,tx,fl, la
One month after South Carolina seceded from the union TX, LA, MS, AL, GA, and FL seceded.
Houston
The southernmost point in Florida is slightly further south than the southernmost point in Texas. Brownsville TX is at latitude 25.90; Key West FL is at latitude 24.55. (One degree of latitude is about 69 miles; there's a bit of Texas that dips down even below Brownsville, but only by about 10 miles, nowhere near the 100 miles that would be required to put it south of Key West).
The driving distance from Dallas, TX, USA to Pensacola, FL, USA is 644.31 miles.
The total driving distance from Dallas, TX to Perdido Key, FL is 707 miles.
The total driving distance from Dallas, TX to Key West, FL is 1,520 miles.
Plumbing South Houston TX
The driving distance from Dallas, TX to Saint George Island, FL is 842 miles.