Non-visual geographic information

RantWoman is posting this item to hang onto. The point of the article is really not much about volcanoes but there are some cool-sounding references about how geographical information was represented before the practice of visual maps took hold. RantWoman is intrigued because she occasionally dabbles in non-visual representation of geographic information and because RantWoman thinks others who do more than dabble in this area might also be intrigued.

http://maphead.blogspot.com/2010/10/volcanoes-are-not-same.html