Google Earth Community: Over 2,000 historic Topographic maps overlays

For those of you following along.

I just finished adding about 900 15-minute historic USGS Topographic Maps covering almost the entire states of Connecticut, Delaware, Massachusetts's, 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. My understanding of the story is that 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 MapTech and University of New Hampshire. The next chapter to the story occured 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 personnally thank Christopher, Richard and Russell for their contributions in making this possible.

This collection does not have all the topo maps that are available from the University of New Hampshire and Maptech websites. Richard appears to have scanned one revision of each 15' map. Maybe someday I will find the time to add multiple revisions and the maps that are available in other scales. But that's an enormous undertaking so probably won't happen any time soon.

If you already have the network link from this post, then do not need to download it again. The new maps should appear automatically. If not, then download from original post.

Here is link to a map of the coverage area

Coverage Map

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Matt
Google Earth Library

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