Before it was a town, it was a crossing. The Spanish name was El Paso del Águila, the eagle’s pass, for the eagles that flew from a grove along the Escondido River in Coahuila. In 1848 a Texas officer keeping watch on the Rio Grande reported his location by the English words, and the name crossed the river and stayed.
The Army came the next spring. On March 27, 1849, three companies of the First Infantry occupied the site, and that November the post was named Fort Duncan. Emigrants bound for the California gold fields made a camp above it. In 1850 a San Antonio banker laid out a town and named it Eagle Pass, and that June, on the other bank, thirty-four men founded the settlement that became Piedras Negras, facing the fort. It was named for the coal that shows in its ground. The two towns have looked at each other across the water ever since.
The river was a line in more ways than one. The state’s historical handbook records that Piedras Negras became a haven for people escaping slavery. And when Union troops occupied Brownsville in 1863, the cotton trade moved upriver: by 1864 the bales were lined from the river to the edge of town, and near the end of the Civil War, Eagle Pass was the only open port for the South’s cotton.
The masters in this entry are not lawyers. On August 16, 1870, at Fort Duncan, the Army enlisted thirteen Black Seminole scouts from about a hundred people who had just arrived there. Their families had gone to Mexico in 1849, led by Juan Caballo, and made a home at Nacimiento, in Coahuila. They tracked so well that by the end of 1871 the post had enlisted thirty-one. In 1872 some of them moved north to Fort Clark. Four earned the Medal of Honor, three of them for a single fight at Eagle’s Nest Crossing on the Pecos River. The last sixteen were mustered out in August 1912.
Tracking is the craft of reading what the ground remembers: which way a party went, how many, how fast, how long ago. It is also the first half of every serious case. A crash scene is ground. The truck’s black box, the driver’s log, the maintenance file, the witness who saw more than he said at the scene: all of it is track, and all of it starts fading the minute the thing happens.
Others made the same crossing and found the same home. The Kickapoo settled at El Nacimiento in the 1850s, and for generations their families left in late spring to work the harvests north and came back in the fall. Because a Texas band traditionally camped near the international bridge at Eagle Pass, it has long been identified with this state. On January 8, 1983, a law of Congress recognized the band, and its land lies by the Rio Grande, just south of town.
The ground paid out again in this century. The Eagle Ford shale runs from the Mexican border into East Texas, roughly fifty miles wide and four hundred long, named for a town near Dallas, and Maverick County is one of its counties. The crossing is still the point. Truck freight through the port was worth about ten billion dollars in 2025, and in 2024 a presidential permit authorized a new crossing at the northwest edge of the city, for vehicles, pedestrians, and trains. More weight on the same roads is why the Maverick County page on this site is about trucks.
For most of its life Eagle Pass was a place people had to look up on a map. Lately it has been on the news. What the news does not show is what the place does to the people raised in it. The summers are consistently hot, and the record, 115 degrees, has come on more than one day. The brush has thorns. There are two languages at every counter and two countries at the end of the street, and you learn early that what a person says and what he means can stand on different banks. A border town is a hard school, and it teaches two things.
The first is to read the ground: who is who, what is really being said, which way the water is moving. The second is to hold it. The scouts at Fort Duncan did both, and anyone raised along that river learns the same two lessons early, usually the hard way. In Spanish, maestro means the one who has mastered a thing and the one who teaches it. On the border, more often than not, it also means the one who does not back up.
Read the ground. Hold it. Every trial is those two things, in that order.
History: Handbook of Texas Online, Texas State Historical Association: Paso del Águila, Eagle Pass, Fort Duncan, Maverick County, Black Seminole Scouts, Black Seminole Indians, and Kickapoo Indians. Piedras Negras: Gobierno de Coahuila. The recognition act: Public Law 97-429 (1983). The Eagle Ford: Railroad Commission of Texas. The new crossing: Presidential Permit, 89 Fed. Reg. 48247 (2024). Truck freight: Bureau of Transportation Statistics, TransBorder Freight Data, 2025.
