Four Mile Historic Park - Denver's oldest standing structure

Four Mile House, completed in 1859 and preserved at Four Mile Historic Park, is widely cited as the oldest standing structure within the City and County of Denver. The site interprets 19th‑century frontier life and includes the original house, outbuildings, and period furnishings. The park operates as a living-history museum with seasonal programs demonstrating ranching, domestic life, and early transportation along the Cherokee Trail.