Posted this a while back with one of the tunnels (not THE tunnel though) and some of Jurassic near the end.
The thing about wildcat is a some of the (for me, at least) more interesting "features" you see on YouTube are actually off of their property. Like the tunnels or Calahan falls. There are signs up all over the place about staying off of railroad property or crossing the tracks. YMMV!
There are also marked, signed trails that weren't on the latest map I got about a year ago...which isn't a big deal to me.
That rock at 9:16 is where my photo was take! Great video- always amazes me how it never does the size of anything justice tho (hills, rocks, etc)