Yeah it makes no sense then. New Bern is near the coast and I have never heard of a Newburn in the mountains and I lived there for a few years.
It's also too on the nose that the outdoorsy guy wanted for murder would be hiding in the mountains. I dunno sounds like a false lead.
But you know what is in the mountains. Little Switzerland.. and why is it called New Bern? Because it was founded by Swiss immigrants. Got to follow the clues.