None of the campgrounds here have their own trolley per se. The closest campground to the visitor center is Artillery Ridge on the Taneytown Road/Rt 134.
They honor Good Sam and Passport America discounts. They also have stables there where you can take a horseback tour of the battlefield. As big as the battlefield is, you definitely need some type of transportation to view it.
We have a Trolley service in Gettysburg and surrounding areas. Here is the website so you can check out routes and schedules
http://www.rabbittransit.org/Schedules/FreedomTransit.aspxHere is Artillery Ridges website:
http://artilleryridge.com/P.S. I'll apologize in advance for high gas prices. They like to gouge us all year long. You can go to any other town over and pay less for your gas.