Outline Map of Delaware
This is a basic black and white map showing the county lines as its only details.
Source: Indiana State University

Annual Average Precipitation Map
This map shows the average annual rainfall in the state.
Source: Spatial Climate Analysis Service, Oregon State University

Delaware State Map Site Atlas
If you need a map that shows the major freeways in Delaware, this is it!
Source: World Sites Atlas

Merriam Webster Atlas Map
This atlas page shows the Delaware state map and some quick facts. There is also a good explanation of the symbolism of the state flag.
Source: The New York Times and Merriam Webster