My father was born and raised in Big Horn County, WY.
I have seen the Tetons from both sides, Wyoming and Idaho.
http://www.jacksonholenet.com/teton_valley_idaho/
Shhhhh!
Dont tell them....or they all show up and Afton turns into just another overpriced vacation town!
The one peak is sorta shaped like the Matterhorn. Nice.