Mile markers

I was thinking this morning that it might be helpful to have some mile markers or equivalent on at least the beta course. It could be part of the course or some programmatic element. Or perhaps leave it in long-term but have it “toggle-able” and default to hidden. It would be useful so we could report bugs with it. “Floating deer at mile marker 3.5”. Actually… I just ran into a units issue didn’t I! so to that end I would propose making it meters and having them every 50 or 100m - but again, subtle even when toggled on. (ok I admit I secretly want to use them to label strava segments too -why must you judge!!)