Hi M, I honestly cannot be 100% sure of anything. The little map they give you at the visitor center, shows this to be South Teton. But, then again, their map never showed Nez Perce or NP. If you think the caption is incorrect, please let me know so I can change it.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe