In his 1844 journal of his trading expeditions to Santa Fe, Josiah Gregg devoted at least four pages to the prairie dog.

Until the 1830s, the Disputed Territory along the Red River, where Arkansas, Oklahoma, Texas and Louisiana meet, was a "no man's land."

From 1817 to 1822, the "Sulphur Fork Factory" stood at the confluence of the Sulphur into the Red River in today's Miller County, Arkansas.

After the Battle of Village Creek, the Republic of Texas signed the Fort Bird Treaty of 1842.

What are these "earth pimples" (acne!) as some researchers have described the circular mounds that appear in all over the Red River Valley?

A lot of shenanigans and the Adams-Onis Treaty of 1819 established the Red River as the southern boundary of the Louisiana Purchase of 1803.

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

In 1805, Dr. Sibley took the testimony of Francis Grappe about French settlements along the Red River in New Orleans Territory.

The census of Native People of New Orleans Territory included descriptions of tribal languages, places, and affiliations.

A Peace Treaty that wasn't supposed to be peaceful was signed by the tribes southern Indian Territory at Camp Napoleon in May 1865.

Discovery of an ancient village at Fish Creek, formerly a channel of the Red River in Cooke County, Texas, explains Cross Timbers people.

he Western Interior Seaway of the Mesozoic Era is the reason that the Red River Valley of the South is extremely rich in fossils.

A 1656 map shows villages like Naguatex, which were described in the 1557 book, Gentleman of Elvas, about the de Soto expedition.

According to Jacques Marquette in 1673, this is the "First Map of the Mississippi River."

I found two other maps of Texas, both from the period after Texas statehood (1845), that shows Warren's trading posts.

A Hamlet-Style Transaction between Tishomingo of the Chickasaws and the Choctaws, as related by a French writer in 1749.

Several years ago, I took a road trip and found myself at Indian City, USA. I'm glad I did, because Indian City, USA is no more.

This French map from 1783 combines European claims and native America.

The Caddo structures were so numerous that Europeans who came to the Red River labeled southwestern Arkansas "Mound City."

Evidence of the Caddo City of the Dead along Ozan Creek at Washington, Hempstead County, Arkansas has been almost entirely eliminated.