The Story Behind ItBent’s Old Fort National Historic Site earns every bit of your attention from the moment you arrive. The Bent brothers understood that trade required relationship, and they invested in those relationships seriously and deliberately. The Reconstruction Story Is Fascinating On Its OwnRebuilding a 19th-century adobe fort from scratch in the 1970s was not a simple project. Planning Your VisitBent’s Old Fort is open most of the year, and the experience rewards visitors who take their time. The gift shop carries genuinely interesting books on frontier history, the Santa Fe Trail, and the Bent brothers specifically.