Big trees get big problems. Part of our job is to tend to these problems before they become dangerous. Many of these problems are somewhat easy to identify. A deteriorating ponderosa pine with browning foliage it difficult to ignore if it is tall enough to be seen above the rest of the forest more than a mile away.
There are a few problems that are not so easy to identify. Some are caused by the weather, without prior warning. Others are hidden in the forests. One might think that those in the forests would not concern us. However, our landscape and facilities are so intricately mixed with the forests.
The shiner in the picture above was where a big broken limb needed to be cut from a big fir tree. It may not look big in the picture, but the limb was probably more than nine inches wide, and long enough to weigh a few hundred pounds. The lower right edge of the shiner is frayed because the limb broke right at the trunk, and was hanging vertically against the trunk.
The yellow arrow in the picture below indicates where the shiner is located. The trunk of the tree is not as tapered as it seems to be in the picture. It only looks like this because it is so tall that the the upper portion is very far from the camera! Although this fir is a wild forest tree, it is only a few feet from the cabin below. The broken limb was dangling directly over the roof!
There was no way to predict that this limb would break. It did not seem to be any more structurally deficient than those that remain. Of course, once broken, it was removed faster than I could get a picture of it.