On the way to Italy we stopped in Washington DC for two days with friends. I spent a day and a half walking the Mananas, Virginia battlefield too (First and Second battles of Bull Run/Mananas). Our friends there live 5 miles from it.
There there are signs about taking stuff from the field, and it is a federal offense. But, man, talk about haunted. I stood where, at First Bull Run the Confederate General Bee yelled to his men: "There men stands Jackson like a stone wall. Rally behind the Virginians," and was then killed moments later. (Although Bee died, his words stuck with General Jackson - Thomas "Stonewall" Jackson - one of the South's best generals until he too was killed at Chancellorsville.)
I walked the unfinished railroad where the Confederate army was assaulted by the Union at Second Bull Run. I swear I could feel their presence, several groups of soldiers were sitting in the grass nearby waiting for the coming battle. Farther along, in the deep cut and in the woods, desperate soldiers - from both sides - were in furious combat. But I was all alone, on an abandoned battlefield, 146 years later.
Glad you got to meet Glen. Sounds like a long evening, but worth it. Not many people know how bold he and Colliver were together at Pinnacles.