Multiple date ranges
Over 92,000 maps from the USGS Historical Topographic Map Collection have been loaded into our site. They are grouped by date ranges which can be toggled on and off. You can select multiple date ranges and Memento will automaticly mosaic them into a single view as you explore the map.
Search by location
Use the search box to enter an address, city name or known location to explore the historical maps in that area
Share what you find
Easy to share what you're looking at simply by cutting and pasting the URL
Download maps
Once you zoom into an area, the historical maps are listed on the left. The visible maps are highlighted. Each map has a link so that you can open and download the digial copy of the original map.
Feedback
Let us know what you think with the feedback button and we'll keep you posted to updates on the site.