Each remaining contour line gets the default label, which is the contour variable's value at that contour level. All the contour lines are solid, which is the default line type for the SYMBOL ...

Contour lines are lines that join up areas of equal height on a map. By looking at how far apart the contour lines of an area are, we can tell how steep or flat the land is.

Bacon's Sixpenny Contour Atlas. Northern Wales Edition. Pp. 41. East Anglia Edition. Pp. 41. ... Most of the maps show no railways, but political frontiers are marked by dotted lines.