Hi Think. You caught my eye with this as I'm also a fan of extreme survival, exploration and non-fiction mystery. I'd heard of Ty's books but forgot about them till now. Picked up "Where you'll find me" at the library and started it yesterday.
One of my favorite reads is "Across the Olympic mountains: The Press Expedition". Late 1800's exploration and surveying of this area in Washington State. Lots of first person accounts. Truly amazing what those men accomplished with the tools they had at the time.
https://www.amazon.com/Across-Olympi.../dp/0898862191.