Dang Jack.... I didn't know they had cameras back in the 17th century...
I used to ride a little dirt too, but not on anything that nice... One of my very first bikes was a 441 Victor and we used to ride the bluffs at Lewis and Clark just North east of Council Bluffs Iowa, where the Missouri river cuts into the hills. Some of those were like cliffs

but that old round barrel was like a tractor and if you could get traction you could "get r done".
Some one dug out some "bowls" and you could spin in those until you either shot out or puked. Today I drink whiskey to get the same effect.
No one ever took pictures of me doing that stuff.....my ass was usually over the handlebars
