I don't think there are any berries like that(forget the scientific name for it but meaning made up of tiny knobs with a multiple seeds like a raspberry) on a brambled bush with thorns that is considered inedible. Blackberries and black raspberries are fruiting now and the frosty cane suggest black raspberry to me.

Yes, that is black raspberry, Rubus occidentalis. One of the best wild fruits, IMO.

Black Raspberry for sure. Get 'em before the birds notice!

Among caneberries, black raspberries are considered too seedy by many, but they do have an excellent flavor. If the berry does not pull off very easily, it is not ripe, even if black.

I consider them the best tasting of any cane berry. I have a large patch of cultivated ones, not leaving finding the wild ones to chance. Let's put it this way, a tiny three ounce container of them sells at about 5.99 a shot at the supermarkets if they're not on sale. Jellies made from them will make you wanna slap your mama.