The exhibition, held at Palazzo Accorretti in Filottrano from November 11, 2023, to January 28, 2024, celebrated Beltrami’s connection with the indigenous peoples of America, particularly the Dakota and Sioux tribes, with whom he established a relationship of deep friendship.

• Homage to the Explorer: The exhibition took place during the bicentenary of Beltrami’s journey that led him to the discovery of the sources of the Mississippi.
• “The Man with the Red Umbrella”: Beltrami was known among Native Americans as “the man with the red umbrella” due to his umbrella, which he used to shield himself from the sun and rain, and which was perceived as a magical instrument. For this reason, the route to the exhibition in Filottrano was marked by red umbrellas.
• Collection and Artifacts: The exhibition presented a rich collection of ethnographic and anthropological objects from the Dakota Sioux tradition, sourced from private collections, offering an insight into the life and culture of Native Americans.
• Recognition: The Municipality of Filottrano sought to honor Beltrami, a historical figure who was among the first to respectfully document Native culture, in contrast to the offensive and inaccurate literature of the time. A county and a city in Minnesota bear his name.