Three experimental forests exist across the geographic range of W&W. These valuable scientific resources incorporate a broad range of climate conditions, forest and range types, research emphasis, and history. Forest Service, university, and other scientists conduct basic and applied studies on research themes including forest, stream, and rangeland ecology; hydrology; wildlife; biological diversity; and effects of forest and range management. Long-term data on climate, vegetation change, streamflow, and other site factors document environmental change and support research programs. More information about these sites is described in the links below: