Here’s standing a few feet away from the base of the tree.
Back in the day people would cut tunnels through the tree trunks so you could drive a vehicle through it. Obvisously they had MUCH smaller vehicles. But it’s so sad, because what they were doing was killing the poor Sequoias. Just above this pic there is not really much tree up there. Just a very tall wide stump.
This is what they look like when they fall naturally. Apparently they have very shallow root systems for how big they get.