We had a couple of 100+ year-old beetle-killed pine trees close to the cabin that we cut down recently. I guess the correct term is "felled". I don't think they'd have damaged the cabin or fence when the fell naturally, but they could easily have taken out dozens of still living trees and caused a lot of damage.
The trees are just to the left and right of the center of this photo, taken from our front porch.
Here is an "after" photo for comparison.
We hired a lumber jack (of all trades) to cut the trees. My saw looked like a toy next to the saw required to bring these trees down. One now lays pointing north along the side of the ridge, the other pointing south. He felled them in exactly the positions we wanted to allow for game to still come up from the valley and to minimize collateral damage. You can see videos of both trees below.
Jay (the lumberjack) would cut a notch at the bottom of the tree to direct the tree to fall in a certain direction (although with old dead trees with some rotting, this can be a challenge), then a cut from the opposite side to create a hinge arond which the tree falls. It took a lot of skill to be as precise and he was. His son, James, would also push on the tree with a long pole to direct it. All this was done in pretty high winds that were not blowing in a helpful direction.
While here, we also had Jay cut up the large tree that had fallen across our hiking trail last year. Here are before and after shots of that:
We'll get some great firewood out of that tree! And, we may use some of it to create an entry sign at the driveway. Maybe. Someday.
This first video is of the tree that was felled to the south. The video is a bit long because there were some problems getting the tree cut. Despite the use of a huge saw and wedges, the saw blade got bound in the tree and a second saw was called into action;
The next video is of the tree that was felled to the north. It went a bit smoother:
It is nice to have these trees down. The view from the porch is a bit nicer. And, we also now have a better view of the bottom of the valley where moose and elk often hang out. The beetle-kill epidemic from several years ago has certain changed the whole ecosystem around the cabin.