Permission ? I Don't need no stinkin' permission
I got you're Permission Right Here !
Seriously though , I never hunted near a civil war site.
too far away.
but the obvious answer is "Ask"
if told no, say. "thank you for your time !"
and go ask someone else.
If your friendly, people arn't going to tear you a new one.
my opening words w
ith a smile are usually,
"Hi ! Sorry to bother you, I ............"
& no people do not go running for shotguns in the real world
if told No, Thank them for their time & Move on.
Don't try to wheel & Deal your way in.
using words like "But" , "you don't understand" , or any
other defensive/offensive remarks thinking you'll change their minds.
if you feel you must react,
at the very most, try to hand them a card, saying, "This is me, if you change your mind",
Not a word more.