The Sims-Garfield Ranch is a site on the National Register of Historic Places located near Ryegate, Montana. It was added to the Register on August 27, 1980.^[1] The listing included six contributing buildings:

• An original log cabin built by John T. Sally, perhaps as early as 1855
• A six-room log house built by Joseph Sims in c. 1878
• A ranch house built by the Victor Schaff family in 1910, renovated in 1927 and in 1942
• A log barn, built in c. 1878
• A stone barn, built in the 1880s
• A frame board barn^[2]