Pictures showed a HUGE hole in the asphalt driveway. You could walk through the hole in the wall. Fortunately, there was never an investigation; it was just assumed that the boulder came loose and slid down the mountain. Had anyone gone up there, they would've seen that it had been clearly dug out.
my bestest trundle was while doing an Fa on hogs back about 1978. No pics - but there was a flake of about ten feet across, six to seven feet in height and from two to five inches thick that i was approaching after a run out on a blank slab section. The left side butted into a small crack system which i planned to follow. the flake seemed solid as i friction-ed up the face of it angling for the crack> i felt WEIRDNESS at first. Then realized the flake was sliding of the muth-f8ckin face! As it slid i simply ran-frictioned IN PLACE as it began to hurtle downward, ending me up in the same basic place at the bottom of where the flake USED to be!
The flake began to topple then after about 200' of travel, hit a large pine about ten feet up its trunk exploding it into shrapnel that we could see going almost to the river..Luckily not one piece hit my buddies as they were off to the right quite aways,, we all laughed about it after the fact.
Like Kris, it involved a dead tree, not a big a tree, but much more elevation.
Twas' a peak bagging trip to North Guardian Angel in Zion. I was first down the rappels and the only plausible direction went too close for comfort to a large precariously perched dead Pinion or Juniper. I didn't want anyone to knock it down on me so I gave it a nudge with my foot to check for stability and down it went.
All the way towards the Subway about 3000 feet below.
Mr. Way and I did the flake that you used to stand on for the belay of Anticipation on Arch Rock. It was a winter day in the late 80s and we were the only ones up there. Went a long way down the scree.
My wildest trundle would be losing my Chouinard hammer off Broad Ledge on the Salathe while climbers were messing around at the base of that wall on short climbs, namely Roger Breedlove et al.
Not a great moment for me since there was great risk to those down in the talus. Roger returned it to me; the handle had broken on the way down. I later sent it to Chouinard and they sent it back with a new handle, amazingly.