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

Outline Map of Pennsylvania
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

Regional Map
This interactive map allows you to view Pennsylvania regions with the region view that includes roads, forests, and rivers, or with a city view that shows major cities. Roll over the purple dots on the city map with your mouse to get their names.

Gettysburg Maps
You can access several different maps of the Gettysburg area. You can find the roads that lead to the historical sight, a map of the battlefield, and more.
Source: Gettysburg.com

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