Hat tip to my good friend Dr. Laura Munski, who shared this interesting site, created by ESRI, who produces the software ArcGIS, which is used for GIS, cartography, and many other uses. They also have a series of sites, called Story Maps, which all look interesting (yes, I am into geography as well as history).
The Story Map on the Civil War is quite interesting, as it highlights battles, in chronological order, offers the user the chance to narrow the range, and, it animates the battle sites on the base map. One great feature is the linking to the battle sites through the Civil War Trust, who links to this site. Civil War Trust is a pretty cool site for learning about the war, and battlefield preservation. It also has a page for smartphone apps (if you are able to enjoy that technology).
If you have some time, check out this great resource, especially if you are a teacher, as I can see the value of this in the classroom.