Nebraska Administrative Code — Title 316 (Revenue) + Title 350 (Property)
Neb. Admin. Code § 350-14-002.29 — Timberland and Forestland is land which is wooded by nature or humans and consisting of a dense growth of trees and underbrush such that it is not suitable for grazing
002.30 Friable is soil which is easy to break, crumble, or crush.
Source: official text