Our destination is the arch located under this peninsula of rock. At least that's where we think it is. We have not found a GPS position listed anywhere for Robbers Roost Arch, but we have found some photos on the Internet. Comparing foot-trails on those photos to the ones displayed in the aerial image causes us to believe this is the correct location. The blue line indicates the approximate route we chose to take. The objective was to avoid unnecessary changes in elevation. That blue line will be displayed on the screen of the PN-40. We will use it to stay on course.