I forgot to check the 3/6 street one, but there's (a new) one at 1/6 corner https://www.openstreetmap.org/node/10172437292

I saw some signs on trees at https://www.mapillary.com/app/?pKey=825027628615802&focus=photo and https://www.mapillary.com/app/?pKey=5978073528869842&focus=photo but it was getting darkish and I also wasn't paying much attention, so I am not sure what it says. But I think it wasn't related to these "trails" and they look relatively older.