"Mortal Fall," by Christine Carbo. It's the second book of hers that I've read. My daughter-in-law knows her....they are both Pilates instructors in Whitefish, MT. This one is fiction also, and is also about an investigation of a death in Glacier National Park. The other one, "The Wild Inside," was pretty good.
The "scene of the crime" in this one is near "the loop".......a 180 degree curve in the "Going to the Sun Road." I was in Glacier over Memorial Day weekend, and we biked to the loop. The road was closed to vehicles, because the snow hadn't yet been plowed near Logan's Pass, but was open to hikers and bikers. It is gorgeous country!
2017 Jason Wolverton spruce/maple, 640, "Luz Blanca"
2016 Kenny Hill New World Estudio 640, cedar
2015 Kenny Hill Performance 640, C/IR