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So this is what the USGS topo map layer looks like for that area (which you couldn't load directly in alltrails). I'm not sure if any of these are what you mean but if something appears on a paper top map its generally gonna show up on alltrails topo layer unless you mean its just unmarked fire roads which don't appear on any map and even then you don't need a physical compass cuz ur phone has a digital one if that is your point.