The Dark Side of the Moon

[The Cartographist]

Having thought about it for some time now, I guess what I meant was that it doesn't convey any information. It is an abstract image that, while pretty/interesting to look at, provides no utility.

[ravells]

Absolutely. If it was presented to you in the form shown (without a key, legend etc) - one would not think it was a map.

[su_liam]

Well, it does depict, pretty accurately, the spatial position of certain features on the moon. What those features are would be mysterious without the key, but even without the key there is some information content.

I have the original map in a book on terrestrial planets. It's a geological map, and quite informative if you have the key(and understand it ). Basically, as I remember, the different colors represent different ages and origins of surface materials. For instance mare deposits, younger craters and their associated ejecta fields, older craters, etc.