We were there the day before you! Sidenote: make sure you keep looking up and to the left when you're getting close to blue cabin if you don't have the POI on your GPX track (northbound). My buddy rode right on by it thinking he was behind everyone else. If you don't look up, you won't see it. Doh! Garmin Inreach mini tracking helped us find him later. Extra side note: if you follow the official IBDR GPX track from Avery to Wallace, you'll miss the turn at the trestle and only get 3 of the 7 tunnels. Took a while to figure that one out.