Lookout tree
A lookout tree is a simple fire lookout tower created by attaching a ladder or a series of spikes to a tall straight tree with a view of the surrounding lands, allowing rangers or fire crews to conveniently climb the tree to survey their surroundings. The simplest kind consist only of a ladder to a suitable height: this kind was called a "ladder tree." Some ladder trees had platforms on the ground next to them for maps and a fire finder.