While we're on the subject of Little Big Horn/Greasy Grass, perhaps someone out there can confirm or quash something I read (too)many years ago.
The tale, as I recall it, was thart, folloing the Custer slice-and-dice session a large chunk of the Lakota moved North into Canada where they were intercepted and surrendered to/were 'arrested' by a small group (one source suggested a single constable) of the North West Mounted Police.
Is this just an apocryphal tale or is there any truth in it?

W