Perhaps most of you are already aware of this, but, if not, check it out. This is an excellent on-line map resource and now it's free. Data covers the globe.

ESRI is a maker of GIS software, and they have been compiling these resources for some time...more that you can find on Google at this time.

Edited by noj (18/03/11 04:29 PM)
"Beneath his pessimism, his bleak conviction that all the machinery was rigged against him, at the bottom of his soul was a faith that he was going to outwit it by carefully watching the signs he was going to know when to dodge and be spared." -H.Thompson