I have always found the USGS maps to be invaluable in solving research puzzles. I’m happy to hear the National Map Viewer has been upgraded. I love the download feature – you can make custom maps for your research localities. Try searching on your ancestor’s surname to find geographical features named after them.
The US Geological Survey has an online collection of more than 178,000 maps, dating back to 1880. They cover the entire country. Best of all, they’re free to download. However, the digital images were not always of the highest quality and the search software for finding maps was confusing, at best. All that has now changed with the introduction of a new online map viewer.
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On Granny's Trail 