Very cool. I need to drive up there nest 4th and check it out!
I remember a gun club I belonged to that invited some civil war mortar buffs to use the 600yd range. They had a pallet target laid flat about 350yds down range and would fire to see who came closest. I think they had 3 mortars.I got the biggest kick out of them firing, going down range to check target, and then walking back with ball and re-using over and over.
Thanks for posting