Days 18-19: She's a Butte!
Day 18 Today we followed one of our map's official "alternate" routes - partly to avoid some difficult terrain (we felt like we were all funned out for now with difficult terrain from yesterday) and partly because of the novelty it offered of legally riding on the interstate for a few miles. We left Mormon Gulch campground and followed a steep gravel frontage road along I-15. The frontage road gave way to a nice, flat old railroad grade which we continued following through the mountain passage between Basin and Butte. We even got to go through a cool old railroad tunnel labeled "No. 9, 1911" (Eric Rickert, if you're reading this, know that I thought of you. I have no idea when this railroad shut down or which one it was, but I would not be surprised if you do). One of the few downsides to the new ecosystems we were experiencing on this side of the divide since Helena was the lack of berries we had been finding, but then... We found a new spe...