I will add more areas with the geological formations, historical workings, and tips.

I am curious, what if I offered base maps that any member could upload and have access to? We can pick common areas and we could have a library of these KML maps. Outside of that I can always build anyone a custom map if you would like to keep it more private for the area. *KML file is uploadable into Google Earth and available offline. Giving you access to a great map in the field.