IMPORTANT NOTE:
The following example is based on a TOPO MAP with COPYRIGHT, so I can't present you the topo map that I used to make this SP map.*****
Hi,
this is how to make an accurate topo map (this could take several days).
First you start by editing a clear map and putting coordinates every one (1) Km.
Look at the picture:
Next task is to transfer the elevations from the topo map to your SP map. This is the most difficult task and requires knowledge how to read a topographic map and keeping track of the coordinates: