The Moulton Barn and other historical sites are on Mormon Row, a straight gravel road accessed from Antelope Flats Rd from US Hwy 89.
You can also get to Mormon Row by turning onto Gros Ventre Rd from Gros Ventre Junction. Go past the Gros Ventre Campground then, turn left on Mormon Row.
Road Conditions May Vary
2WD vehicles should not have any issues following Mormon Row if the road is dry.
When I was here over the summer, we had difficulty on the gravel road after a thunderstorm. The road softened up, and slid a lot in an AWD SUV.
I recommend checking the weather before you go on Mormon Row.
The Views
All along Mormon Row, you get fantastic views of the Tetons.
The tall grass, wood fence, and trees make a perfect foreground for a great shot of the Tetons.
Sunrise and sunset are the best times to see the Moulton Barn.