Carrock

From the One Wiki to Rule Them All, the Lord of the Rings Encyclopedia.

The Carrock is a stony eyot in the upper reaches of the River Anduin, to the north of the Old Ford.

During their journey to Erebor, Thorin and Company were housed there overnight by the Eagles before they went to see Beorn.

In Chapter 7 of The Hobbit, Gandalf states that the steps from the base of the rock to the flat top were made by Beorn and that "Carrock" is Beorn's name for it. This is somewhat of a linguistical joke on Tolkien's part, since car in Anglo-Saxon means "rock".