The Garrison Mill is a historic site located in the Ruby watershed of Montana. The mill was built in 1866 and was used to process gold ore from nearby mines. The mill operated until the early 1900s and was then abandoned. Today, visitors can explore the remains of the mill and learn about the history of the area. The site is managed by the Bureau of Land Management and is open to the public.

There are many good reasons to visit the Garrison Mill. For history enthusiasts, the mill offers a unique glimpse into Montana's mining past. The site also offers scenic views of the surrounding mountains and rivers. Visitors may also see wildlife such as elk, deer, and eagles. Additionally, the area is popular for hiking, fishing, and camping, making it a great destination for outdoor enthusiasts. Overall, the Garrison Mill is a fascinating and beautiful place to visit in Montana.