What information is there about the Bear Goddess Artio?

From what I can find, very little, but this is true of most Celtic gods and goddesses. She was a goddess of wildlife who appeared as a bear. Essus may have been her spouse.

Where there is evidence of her worship includes Bern, Switzerland which takes the name "bear" by Bär.

Her name comes from either the Gaulish Word artos, bear or other Celtic languages have similar Words, such as Old Irish art, Welsh arth - which may also be the source for the modern name Arthur.

Representation of her is found in the Muri statuette of Artio, now housed in the Museum in Bern, depicts the goddess seated, facing a bear. In one hand she holds a bowl and in the other she has flowers and fruit.

There are also claims of inscriptions to this goddess elsewhere, in Daun, Weilerbach, Heddernheim, and Stockstadt.