---- Forwarded message from Matt Fox <[log in to unmask]> ----- Date: Sat, 12 Jan 2008 02:04:17 -0800 From: Matt Fox <[log in to unmask]> Reply-To: Matt Fox <[log in to unmask]> Subject: Re: Over 1,000 Historical Topographic Maps for Google Earth To: MAPS-L@ I just finished another huge update to this topographic map collection. I added approximately 900 15-minute historic USGS Topographic Maps covering almost the entire states of Connecticut, Delaware, Massachusetts, Maryland, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont. Most of the maps are dated between 1890 and 1910. There is a long history to these maps and how they ended up on my server and the role I played is but a very small one. My understanding of the story is that several years ago Christopher Marshall took a laptop and a scanner to various libraries and created the original scans, which consisted of 4 scans for the four corners of each map (JPGs from the original scans can be downloaded from http://historical.maptech.com/ and http://docs.unh.edu/nhtopos/nhtopos.htm). The next chapter to the story occurred a few years ago when Richard Utter took about 900 of the maps, stitched together the four pieces of each map and georeferenced them. Then finally, last week I received an email from Russell Nelson saying that he had all of Richard's georeferenced maps on a couple DVDs and that he would be happy to send them to me. Now here we are a few days later and I have converted all of them to Google Earth SuperOverlays and uploaded them to my server. So I would like to personally thank Christopher, Richard and Russell for their contributions in making this possible. By the way, for anyone thinking about ways to display this kind of map data, it only took me a few hours to process all 900 of the GEOTiffs into Google Earth SuperOverlays and then a few more hours to create the index, fancy KML code, etc. Simply open this small network link file with Google Earth. http://www.gelib.com/maps/Topos/Topos_nl.kml More information on this latest edition to this collection here: http://www.gelib.com/new-england-topographic-maps.htm Matt Fox ----- End forwarded message -----