This one was harsh on paint. The SF barrier will have a soft-top.

Diana Rempe portages an early model Metrofiets over the barrier at DRT Portland. photo by Will Vanlue

There are 5 checkpoints that’s it.  They must be visited in order.  They are staffed by people who sign your manifest.  At one of the later checkpoints, riders will encounter a one meter barrier.  Riders will arrive at the one meter barrier after having visited cargo checkpoints.