Does anyone know what black dots mean on an OS Explorer map?
There are a lot of them on the map of Kinder Scout in the Peak District (UK).
I know the black dashed line is a footpath, I am asking about the round black dots (there are a line of them going from Kinder Low to Madwoman Stones).
In the image below, they go from Kinder Low (633m) to the top right edge of the map: