At the great cave of the Northeast, an elevator takes you 156âbelow ground.... At the great cave of the Northeast, an elevator takes you 156âbelow ground. The doors open into a prehistoric underground cavern 6,000,000 years in the making! Trained tour guides help negotiate the cave and teach about its magnificent natural features. Back on the surface, mine for gemstones at Howe Caverns Mining Co.
Lumber (American English; used only in North America) or timber (used in the rest of the English speaking world) is a type of wood that has been processed into beams and planks, a stage in the process of wood production. Lumber is mainly used for structural purposes but has many other uses as well. There are two main types of lumber.
Varieties of hardwood lumber are the staple materials for the woodworker, particularly those who focus on fine woodworking projects such as furniture. However, the term hardwood can be a bit deceiving, as it has less to do with the hardness of the material than the species of the tree from which the lumber is harvested. Hardwoods come from deciduous, or broad-leaved trees, as opposed to softwoods, that are harvested from from evergreens. 1  In general, the lumber derived from hardwood species are typically harder than softwoods, although there are exceptions (balsa wood is very light and soft, but is considered a hardwood).