And where the slope is shallow, the lines are far apart. If I add contours to the map, I can see where the hills are and how steep they are. Symbols are often similar on different types of map.

Created by the Mapping and Geographic Information Centre at BAS, the map offers a detailed topographic view of ... including contours, mountain spot heights, rock outcrops, lakes, and place ...

Virtual Surveyor has added Basic Topographic Design tools to Version 10 of its smart drone surveying package allowing users ...