Cozens Ranch Museum is a historic farmhouse, post office, stagecoach stop, inn, and restaurant. From its construction until the 1930s, it was the home of the Cozens family. The Cozens were the first homesteaders in the area and operated the stagecoach restaurant and inn in addition to ranching much of the land in the Fraser Valley.

In the 1930s, the property was deeded to the Jesuits at Regis University in Denver. It was then used as a summer retreat for the priests until the 1980s.

When the Jesuits decided to sell most of their property in the 1980s, the historic farmhouse was in danger of demolition. The Grand County Historical Association was able to save the building and renovate it back to its 1874 floor plan. It was added to the National Register of Historic Places in 1988 and opened as a museum in 1991.

Today, the structure still stands on its original location and operates as a local history and historic house museum. It is operated by the Grand County Historical Association (GCHA) and is open year-round. The museum hosts approximately 2,000 visitors a year through a combination of general admission and special programs and events.