USGS Historical Topographical Maps

1933 USGS map of area northwest of Carthage, Illinois.
My father attended Young America School
and my grandmother attended Grapevine.

The United States Geological Survey has a really interesting website with interactive historical maps from their collection.

The image in this post is from the Carthage, Hancock County, Illinois, area--with the schools my father and grandmother attended.

I don't usually just post links, but this is a really interesting one.