There are many ‘Forts” in Colorado. But none of them were military outposts. Instead, these were fortified trading posts for Indigenous Peoples and early Trappers.
Fort Lupton has been completely reconstructed on a site adjacent to the original location. It was established in 1836 by Lancaster Lupton, a former soldier and West Point Graduate. Click on the link above for the details of the Founding of the Fort. He had passed through the area with the Dodge-Leavenworth Expedition in 1834.
Trading Gate, interior, the Natives were kept in this smaller area and never allowed into the main Fort.
The Watch Tower Interior & Exterior:
Private Dwelling Door: