"Flag" distance at bottom of map screen

So on a recent hike, instead of the bottom of my map screen showing direction of next turn and distance to it, there was this strange "flag" icon and a number (1.8) that might have been a distance but it didn't seem to change as we walked. Does anyone know what this was and how it might have gotten there? I hadn't changed any screens before the hike, but I couldn't seem to change this during the hike. Would like to know how to make sure it doesn't come back, because I would prefer to have the turn-by-turn there.