Started out with a map, creating a box grid and box grid on the table with strings.
Drawing the map on the table, started to use my Dremel to gauge a 3mm*3mm channel.
Used soldering wire (the easiest flexible wire there is!) and used very small amounts of sellotape to hold 3 together for the edge of the map.
Then put them in the channel, using casting resin to set the wire.
Did the same for the rivers (1 soldering wire width) and gold wire for the roads. Then just used stickers for town names.