I just have a few minutes before getting my campaign started. I finally completed the map key for my elevation maps, such as this one here, for those who may be interested. Much more involved than might be expected. I've given the code for red (R), green (G) and blue (B) microsoft color formatting for those who might wish to duplicate the scheme I use for designing their own maps in Publisher.
Sorry for the blurriness; but see the link above. The wiki gives it plenty of clarity.