----------------------------Original message---------------------------- This might be more of a historical question BUT, exactly how did the US delineate political boundaries, especially village or towns way back when. What criteria, typical methodology, etc. For instance, how did we know where one village started & the next ended? The reason I'm asking is that we are trying to develop a system/methodology integrating GPS/GIS/vodoo to *finally* delineate village boundaries here in Thailand. It would be nice to have some background before we lay on the technology. Any references, etc. much appreciated. ------------------------------------------------------------------------------- Paul Hastings [log in to unmask] [log in to unmask] Director Environmental Information Center Thailand Environment Institute