Cantonment Reno also known as Fort McKinney 1 was a US Army post or cantonment located on the Powder River near the old Bozeman Trail crossing. A previous fort near the site (Fort Reno) had been abandoned and burned after the Fort Laramie Treaty of 1868. Cantonment Reno was re-established in late 1876, just upstream of the site of old Fort Reno. C...