The Ti-Hacks of Western Wyoming

There's a book i havein here of the civil war and its engineering during the civil war. And part of the part of the cat mouse game was blowing up the other side railroad bridges. So these jokers, no joke. Somebody would come along and blow up a railroad bridge. They would deploy a team of engineers, both sides did this to my knowledge,. they would build a bridge strong enough to carry the load of an entire loaded down locomotive with train cars. The ties were cut on the mountain side by ti hacks who wielded these like giant norse, two sided viking axes. All those railroad ties that built like the pacific and all that came from this forest near