Simple Dotted Trail in GIMP

[Robber Baron]

I've been playing around with some brushes in GIMP and stumbled across a way to create a dotted trail.

1) Create a new image 3 pixels by 3 pixels.
2) Fill the image with which ever color you want to represent your trails.
3) Export the file as a brush.
4) When you get the Export Dialogue, change the Spacing to 250%. This one worked great for my purpose.
5) Export to your GIMP Brushes folder.
6) Happy trails!!

I have attached a segment of a map that I'm working (experimenting) on for reference. Hope this helps!!

[Jacktannery]

Another way is to use paths. Make your path, then use 'STROKE PATH' (edit menu) and in the dialogue options select one of the line styles: sparse dots, normal dots or dense dots, and press OK.