From Missoula the TransAm Trail turns southward, following the footsteps of Lewis and Clark through the Bitterroot Valley. It then crosses a succession of passes, one over the Continental Divide, to Dillon, the heart of Montana's sheep country. The Big Hole Battlefield National Monument is along the way. The route continues through the Alder Gulch into Virginia City, site of the state's first great gold strike. Section 4 ends at West Yellowstone, gateway to Yellowstone National Park.
Map Resources
based on 3 reviews.
Rating: 
Reviewed By: Mitchell Metzger on 9/20/19
I used all 12 maps for my Trans Am trip in 2019. I used them A LOT. All the time, always on my handlebar bag. They were water resistant, tear proof, did not bleed and 110% helpful. I loved these maps. The designers are geniuses. Thank you so much!
Rating: 
Reviewed By: Joe Raber on 6/24/16
The Maps are helpful as a secondary map . I would not go with just these
Rating:
Reviewed By: Tom Lemke on 9/9/11
As usual the maps from Adventure Cycling are excellent and I wouldn't ride without them. The information is up to date and accurate. Thanks
