Paleo-indian hammer found in Northern North Dakota?

by mdopoiex

My brother found this on our farm. We have had many finds over the years. Any clue to its age?

http://imgur.com/W4aweos

http://imgur.com/dnY72R5

CommodoreCoCo

I'd ask r/Archaeology

Mictlantecuhtli

It may not even be paleo.

JustAPoorBoy42

Maybe stone weights for fishing ?