The Theodore Roosevelt National Park is a truly extraordinary place. Prairie dogs, bison, wild horses, and some of the most astonishing landscapes I have seen anywhere in the world. The video below gives an indication of just how enormous the park is, and how incredible the scenery. Turn down the volume though; it was windy up there.
I was one of five Scottish writers chosen by Edinburgh International Book Festival to undertake extraordinary journeys across the Americas in spring and summer 2017.
I travelled through the United States for three weeks, from north to south, beginning in North Dakota, through Appalachia, and ending in Louisiana. For much of this time I was accompanied by the novelist Jennifer Haigh.
You can follow my progress on Twitter and Instagram, and keep up-to-date with all the travellers using the hashtag #Outriders.