In Montana, the mountains are big and the sky is even bigger—a delightful, calm expanse to explore on horseback. http://on.natgeo.com/2wBHnXi pic.twitter.com/5ZAJDiSbSM

In Montana, the mountains are big and the sky is even bigger—a delightful, calm expanse to explore on horseback. http://on.natgeo.com/2wBHnXi  http://pic.twitter.com/5ZAJDiSbSM

https://twitter.com/NatGeoTravel/status/909854733380259849