Ste. Genevieve — The Oldest Surviving French Town in America

Somewhere in this river valley, around the middle of the seventeen hundreds, French Canadian settlers crossed the Mississippi from the Illinois settlements at Kaskaskia and built the first organized European town west of the river. They called it Sainte Genevieve. No one is certain of the exact founding date, but by seventeen fifty the community was producing lead, farming the rich bottomlands called the Grand Champs, and trading with Indigenous neighbors in a pattern that was as much French-Indigenous as it was purely colonial.

What makes Ste. Genevieve extraordinary is not just its age but what it still looks like. The town contains the largest concentration of surviving French colonial architecture in North America, buildings constructed in a technique called poteaux en terre, French for post in ground. Builders cut cedar logs, stood them vertically in the earth like fence posts, and filled the gaps between them with bousillage: a mixture of mud, sticks, and horsehair. Of the five poteaux-en-terre houses known to survive in the United States, three stand in Ste. Genevieve. The Bauvais-Amoureux House is one of only five such structures surviving in the country.

In seventeen eighty-five a catastrophic flood inundated the original townsite, and the community relocated over the following decade to higher ground, the location you can visit today. That move preserved the town's coherence: rather than scattering, the community rebuilt together on the bluff, keeping its French street patterns and its vertical-log traditions intact.

The National Park Service designated Ste. Genevieve a National Historical Park in twenty twenty, finally giving federal protection to a place that most Americans have never heard of but that is, in the literal sense, older and more intact than any French colonial settlement remaining in the country. The buildings here predate the American Revolution. The street names are still French. The river that nearly destroyed the town is still just below.