For Thomas Jefferson, the most important Corps of Discovery in the Louisiana Purchase was the expedition up the Red River of 1806.

Zebulon Pike's journey to the Red River was beset with problems and intrigue.

Between 1809 and 1819, a young American named Henry Ker traveled up the Red River from its mouth to its far western reaches search of gold.

At the turn of the 20th century, the Army Corps of Engineers dredged the Trinity River and built locks and dams south of Dallas.

Top o' Hill Terrace was one the biggest gambling halls, bordellos, and speakeasies in the Southwest.

Architecture was coded and uniform to be efficient in their builds, even the places that we now view as one-of-a-kind quaintness.

The MKT made Denison a very important railroad city after the Civil War.

Randolph B. Marcy, who knew Texas and Indian Territory well, was tasked to lead an expedition to document the Red River in 1852.

While at the Ouachita River, Bernard de la Harpe claimed to have eaten a unicorn.

There was the once-large town of Gotebo, Oklahoma.

Roosevelt has disproportionately more cars than it does humans, but the cars are what keep the humans in Roosevelt.

Doaksville in Choctaw County, Oklahoma is now a ghost town but was once a very important place.

Several years ago, I drove the entire Belt Line Road that circles around Dallas County, and I did it again this past month.

A "National Recreation Area" that was once named after a senator from Connecticut.

The Clarity Tunnel is the star of the ride.

In 1852, Captain Marcy and George B. McClellan were tasked to document the source of the Red River.

Stone ruins near Denison, just a stone's throw from the Old Jefferson Highway, could be related to automobile travel or something else.

Jack Loftin, the remarkable man who wrote, created, and repaired the stone monuments, proved to be a true history machine.

Pedro Vial's map of the "Great Spanish Road" began in Natchitoches and passed by homes and ranches of traders/planters

One of the least studied but major trade arteries emanating from the Red River was the so-called "Great Spanish Road."