I got 6 beaver skins that are skin and stretch and dry how do i kept for next year

Stack fur to fur and leather to leather. Gently fold - do not crease - so they look like a hard shell taco and place in a freezer.

Just like WissMiss said but I put them in cardboard concrete tube.

Depending on the size and If they will lay flat In the freezer I wouldn't be bending them. Or In most cases your freezer is maybe deep enough so you can stand the skins on edge. If this Is the case I would cut 2 pieces of cardboard and sandwich the skins in between. Then either staple the 2 pieces of cardboard together or duct tape them together If It were me I'd do both. This will give you a nice compact package that won't take up much room and give you plenty of protection.
You could also lay them flat If you have the room.

Thank you but don't have a freezer so what the best way to kept them

I have never done this but If you can package those hides like I described and seal the edges so no bugs can get In you might get away with It. Just keep them In a cool dry place and hope for the best. The thing I'd be worried about would be a molding problem. A slight case of mold Is no big deal It can be wiped away. I guess you could open the package a few times and see how things are going.
Maybe some one else has a better idea.

Cool, dry storage out of.reach of rodents. I kept a few hung in my pole barn a couple years ago and I did have a little mold on the areas I didn't get fleshed as well as I should have. I sold them following fall with no deduction. My barn stays about 60 all summer.

I tried it once and had insect damage, but I didn't have it sealed up properly nor did I use any sort of Raid. I have since then bought a freezer.

if you dont have a freezer to keep the dried skins over the summer.Hang them up in a fur bag in a cool dry place.Open the bag and inspect the skins every 2 or 3 weeks,and spray raid on the beetle maggots.This will keep the skins from being ruined by the dermestid beetles.

If they a nice winter beaver, you could send them up to Moyles or to Hector (Furs 4 Fun) both in Idaho for tanning. Shipping shouldn't be too bad, or depending on where you are in Utah might be a nice drive.