Complex sentence: In the more remote parts of Great Britain, especially Scotland, bothies exist to provide simple (free) accommodation for backpackers, and there are some simple shelters and occasional mountain hut in North America, including on the Appalachian trail.
Split into simpler sentences: In the more remote parts of Great Britain, especially Scotland, bothies exist to provide simple (free) accommodation for backpackers. There are some simple shelters and occasional mountain hut also provided in North America, including on the Appalachian trail.