WAS THIS A GIANT SLOTH?

The Tuchone Indians in the Yukon spoke in their legends of this beast said to leave in the mountains east of Frenchman's Lake.  It is supposed to eat beavers, but may have only been devouring the vegetable matter of their lodges.  The Indians have been shown pictures of the supposedly extinct ground sloth and have commented on the resemblance.  Could there be some of them still frolicking around Northern Canada?

Ground Sloth Skeleton