Park Name | Notes | Stamp(s) |
Allegheny Portage RailroadNational Historic Site |
An old incline railroad system. | ![]() |
Delaware Water GapNational Recreation Area |
Waterfalls, beaches. | ![]() ![]() |
Edgar Allen PoeNational Historic Site |
The writer's home. | ![]() ![]() ![]() |
EisenhowerNational Historic Site |
The President's house. | ![]() |
Flight 93National Memorial |
Where the plane crashed on 9-11. | ![]() |
Fort NecessityNational Battlefield |
Washington's first battle. | ![]() |
Friendship HillNational Historic Site |
A treasury secretary's house. | ![]() |
GettysburgNational Military Park |
The major civil war battle. | ![]() |
Hopewell FurnaceNational Historic Site |
An iron forge. | ![]() |
Johnstown FloodNational Memorial |
Remnants of the dam that burst. | ![]() |
IndependenceNational Historical Park |
The beginning of America. | ![]() |
Middle DelawareNational Scenic River |
Inside Delaware Water Gap NRA. | ![]() |
SteamtownNational Historic Site |
Steam trains. | ![]() |
Thaddeus KosciuszkoNational Memorial |
The smallest unit. | ![]() |
Upper DelawareScenic and Recreational River |
Roebling bridge, and Zane Gray museum. | ![]() |
Valley ForgeNational Historical Park |
Washington slept here. | ![]() |