[Bryanw92]

That’s exactly what I was thinking, but couldn’t find a picture...on the whole interWebz!!

[NonValueAdded]

A big rock can be a fitting memorial for America's latest Minutemen, the Heroes of Flight 93 (said with maximum reverence).

Erica: [closing narration] I never saw the Eckert Brothers again. In time, this war - like every other war - ended. But I never forgot. And I come to this place often, when no one else does.
[we see "Partisan Rock," with its memorial plaque, which she reads for us]
Erica: "... In the early days of World War 3, guerillas - mostly children - placed the names of their lost upon this rock. They fought here alone and gave up their lives, so that this nation should not perish from the earth."

I couldn't find an image capture either but those who understand will have the appropriate image in their mind. GMTA, my FRiend.