Grant-Koors Ranch National Historic Site is a little known gem of a park in Montana. With Yellowstone just to the south and Glacier a bit north not too many people choose to spend a lot of time at this ranch. They are missing a treat. The ranch was once over one million acres, and they leased millions more. It began just after the Civil War and the last building constructed was in the very early 1900's. It was an active ranch until late 1960's and turned over to the National Park System intact. Every rope, fence, pot, wagon etc. It is an amazing slice of history. This man - who was retired and not a professional cowboy actually rode with some of the last cattle drives as a young boy.