Not about Alaska but this book is about a ranger who went missing in the High Sierra’s. I read the book and loved it. Passed it onto a friend who then passed it onto another friend. Couldn’t recommend it enough
https://www.amazon.com/Last-Season-P-S-Eric-Blehm/dp/0060583010
Glad she's ok. They didn't find this guy for 5 years, and he was literally a park ranger. BTW, really good book
Not the book you're asking for, but check out "The Last Season" by Eric Blehm. https://www.amazon.com/Last-Season-P-S-Eric-Blehm/dp/0060583010
It's an adventure biography about Randy Morgenson, a Sierra legend, family friend of Ansel Adams and protector of nature. Spoilers in this link: http://www.backpacker.com/survival/survival-stories/missing-in-action-how-a-backcountry-ranger-with-28-years-experience-disappeared/