I believe the mystery to what this bone belonged to has been solved.
I found it in three feet of water in the Missouri river just North of the Knife river in North Dakota.
At recent trip to the North Dakota Heritage Center I found they had a skeleton of a Bison. Upon examination I believe the femur bone to be very similiar to the bone I found.
Wild Bison have not been in the Dakotas since the 1800’s and there are places where Bison had been stampeded off of cliffs by Native Bison hunters many years ago.
The Bison had been hunted by both Native Americans and Whites into the 19th century being a source of food and clothing among other things.
So what do you think?