The context of the following conversation is Riley established outposts in areas that hikers may get stranded with out protection from the elements.:
Riley says I've been doing a lot of outdoor work lately at outposts..
The friend responds What do you do so far out on trails?.
Riley responds I put together shelters far from the road so that stranded hikers will have some shelter to rest in while they wait for help..
The friend responds That could save someone's life in the winter!.