Editing United States Forest Service (section)

=== Research stations and research work units ===
[[File:U.S. Forest Products Lab.jpg|thumb|left|The Forest Products Laboratory, in [[Madison, Wisconsin]]]]
The Forest Service Research and Development deputy area includes five research stations, the [[Forest Products Laboratory]], and the [[International Institute of Tropical Forestry]], in Puerto Rico. Station directors, like regional foresters, report to the Chief. Research stations include Northern, Pacific Northwest, Pacific Southwest, [[Rocky Mountain Research Station|Rocky Mountain]], and [[Southern Research Station|Southern]]. There are 92 research work units located at 67 sites throughout the United States. there are 80 Experimental Forests and Ranges that have been established progressively since 1908; many sites are more than 50 years old. The system provides places for long-term science and management studies in major vegetation types of the {{convert|195|e6acre|km2}} of public land administered by the Forest Service. Individual sites range from 47 to 22,500&nbsp;ha in size.

Operations of Experimental Forests and Ranges are directed by local research teams for the individual sites, by Research Stations for the regions in which they are located, and at the level of the Forest Service.

Major themes in research at the Experimental Forests and Ranges includes:
develop of systems for managing and restoring forests, range lands, and watersheds; investigate the workings of forest and stream ecosystems; characterize plant and animal communities; observe and interpret long-term environmental change and many other themes.