UltraPedestrian Inland Northwest Loop (UP North Loop). Ras and Kathy are attempting a first ever linkup of the Idaho Centennial Trail, Oregon Desert Trail, Pacific Crest Trail, and Pacific Northwest Trail to form what they are calling the UP North Loop. Follow along online. The MapShare site shows the progress of someone tracking with an inReach satellite communicator. Read messages they have sent to MapShare. You can even reply.