A friend's father found this several years back, it took a tractor to get it home, when he found it, it was face down when they flipped it the grind stone on top was underneath it.
Hope you guys enjoy the photo as much as I do.

That is a dandy.

Wow, that is quite a find!

That's cool to find the mortar and the pestle together.

That is a great find. Like they say if only it could tell the stories of the past.

Wow

I would bet they flipped it over to keep the water from getting in and freezing it over the winter , when they were ready for it again, flip it back over.

one year they didn't return in the spring and there is sat.

Awesome find!

Very cool stuff!

I found a good size one about 100 lbs and it was upside down, not sure the reason they flipped them, but I figured it must be the weather as well.

How big is this? Hard to tell from the pic.

How neat is that?!

That makes a whole lot of sense. I have found close to 70 tools on my farm, most for making pemmican and other food prep. There's 3 huge boulders at the camp site, by my back barn. One has 14 mortars worked in it. One has some polishing on the exposed surface, but mostly looks like a long, flat granite slab. I should try flipping it.

Keith

That's a beautiful mano and metate set. I wish I had one that nice.

Keith

I noticed mowing last week, that a lot of rocks worked there way out of the ground, below the main camp site, right above the closest spring. I should go examine them before the plants over grow them.

Keith

I have what was once a hammer head as a door stop right now. Has a nice smoothed out groove where it was lashed to a handle

very cool.

Maybe the Blackfeet flipped them over so that the thieving Pawnee saw it as just another rock and left it be.
(If any of y'all are Pawnee, feel free to just switch the names around.)

You would have to be pretty darn motivated thief, to steal the bigger metates, without heavy machinery.

Keith

That’s great. Thanks for posting