; and (B) the construction of a temporary road that is not longer than 1 mile to carry out that commercial thinning. (4) Salvage of dead and dying trees A categorical exclusion is available to the Secretary to conduct a forest management activity the purpose of which is the salvage of trees that are dead, dying, or both, and were damaged by wind, an ice storm, fire, or another event, including— (A) the incidental removal of trees for landings, skid trails, and road clearing