Help Identifying this stone ax and other

[shellyro11]

Hey guys. I need your help. I was told the first piece was a grooved axe and from 8000-1000 BC. It's 8" long and 6 " wide. Is this true and how do I find the value? The second piece i was told was a nutting stone and no date. It's 3" by 7" Any ideas? Where do you sell these? Thanks so much.

 

[dozer dan]

Eruption or fire wise Dan? I run fire cats so if there is a super eruption I'll probably be under layers of ash fried to a crisp?

I don’t live far from you and I own a BLM water truck so I can put out your fire before you burn to a crisp. 😂