Removing labels, roads and bordersIn my last post I had taken an image from Google maps and trimmed off the unwanted borders. Now for a few techniques in taking the map down to just the terrain.
Use the eyedropper tool (1) to select the lightest color from the surrounding terrain. The use the paint brush tool (02), set on a convenient shape, such as "Circle (05)" (3) to paint over the lablel (4).
Repeat for all the other labels until your map is clean. It will take several hours, but in the end you'll end up with a map like this. (In this map, I've stitched together the areas above and below the initial map to build a map of the campaign area).