Found this bone in about three feet of water about a mile and a half. North of the Knife river.

The handle of the tomahawk is 22″ long.

I can verify that it is a bone because Zeusy keeps trying to grab it!

Can anyone guess what it is? 

I have no clue.

My uneducated guess is it is a cow femur.

Took a right turn and went up the knife river for a mile. In Stanton,ND.

Going to Knife River Village Historical Site. http://www.nps.gov/knri/index.htm

Where Lewis and Clark found the lady of the expedition!