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US Forest Service Research & Development
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  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Experimental Forests & Ranges

The map below show where our experimental forests, ranges, and watersheds are located across the country

* View Map Data in Tabular Format
Name Station Region Land Ownership Lead Scientist Acres / Hectares Contact Info

The Forest Service’s network of long-term experimental areas, commonly referred to as Experimental Forests and Ranges (EFRs), is the largest and longest-lived ecological research network in the United States. The current network of 84 Experimental Forests and Ranges has been established progressively since 1908; many sites are more than 60 years old.

This research network provides an incredible wealth of records and knowledge of ecological change in natural and managed forest and grassland ecosystems across the United States. Hosted on a combination of public and private lands, the network provides a home for long-term science and management studies in most major vegetation types of the United States. Individual sites range in size from 47 to 22,500 ha.

The 84 sites consist of 76 experimental forests, 4 experimental ranges, and 4 experimental watersheds. In addition to the Forest Service sites, five other experimental areas across the country are identified as “cooperating” experimental areas with formal memoranda of understanding between the regional Forest Service research station and the manager of the cooperating site.

More information: local web sites

Each experimental area has a basic web page that contains at least a brief description of the area and the purpose for creating the experimental area. Many EFRs offer more extensive web sites, with more information about their research activities, etc.

Listing of experimental areas and their web sites. The "Status" column is either blank (for Forest Service sites) or "cooperating" for cooperating sites.
Site Name State Status
Alum Creek Experimental Forest Arkansas  
Argonne Experimental Forest Wisconsin  
Baltimore Long Term Ecological Research Maryland cooperating
Bartlett Experimental Forest New Hampshire  
Beaver Creek Experimental Watershed Arizona  
Bent Creek Experimental Forest North Carolina  
Big Falls Experimental Forest Minnesota  
Black Hills Experimental Forest South Dakota  
Blacks Mountain Experimental Forest California  
Blue Valley Experimental Forest North Carolina  
Boise Basin Experimental Forest Idaho  
Bonanza Creek Experimental Forest Alaska  
Calhoun Experimental Forest South Carolina  
Caribou-Poker Creeks Research Watershed Alaska cooperating
Cascade Head Experimental Forest Oregon  
Caspar Creek Experimental Watershed California  
Challenge Experimental Forest California  
Chipola Experimental Forest Florida  
Coram Experimental Forest Montana  
Coulee Experimental Forest Wisconsin  
Coweeta Hydrologic Laboratory North Carolina  
Crossett Experimental Forest Arkansas  
Cutfoot Sioux Experimental Forest Minnesota  
Deception Creek Experimental Forest Idaho  
Delta Experimental Forest Mississippi  
Denbigh Experimental Forest North Dakota  
Desert Experimental Range Utah  
Dukes (Upper Peninsula) Experimental Forest Michigan  
Entiat Experimental Forest Washington  
Escambia Experimental Forest Alabama  
Estate Thomas Experimental Forest U.S. Virgin Islands  
Fernow Experimental Forest West Virginia  
Fort Valley Experimental Forest Arizona  
Fraser Experimental Forest Colorado  
Glacier Lakes Ecosystem Experiments Site Wyoming  
Great Basin Experimental Range Utah  
H. J. Andrews Experimental Forest Oregon  
Harrison Experimental Forest Mississippi  
Hawaii Experimental Tropical Forest Hawaii  
HĂ©en Latinee Alaska  
Hitchiti Experimental Forest Georgia  
Howland Cooperating Experimental Forest Maine cooperating
Hubbard Brook Experimental Forest New Hampshire  
Kane Experimental Forest Pennsylvania  
Kaskaskia Experimental Forest Illinois  
Kings River Experimental Watershed California  
Koen Experimental Forest Arkansas  
Long Valley Experimental Forest Arizona  
Lower Peninsula Experimental Forest Michigan  
Luquillo Experimental Forest Puerto Rico  
Manitou Experimental Forest Colorado  
Marcell Experimental Forest Minnesota  
Massabesic Experimental Forest Maine  
Maybeso Experimental Forest Alaska  
North Mountain Experimental Area California  
Olustee Experimental Forest Florida  
Olympic Experimental State Forest Washington cooperating
Onion Creek Experimental Forest California
Palustris Experimental Forest Louisiana  
Paoli Experimental Forest Indiana  
Penobscot Experimental Forest Maine  
Pike Bay Experimental Forest Minnesota  
Priest River Experimental Forest Idaho  
Pringle Falls Experimental Forest Oregon  
Redwood Experimental Forest California  
Rhinelander Experimental Forest Wisconsin  
Sagehen Experimental Forest California  
San Dimas Experimental Forest California  
San Joaquin Experimental Range California  
Santee Experimental Forest South Carolina  
Scull Shoals Experimental Forest Georgia  
Sierra Ancha Experimental Forest Arizona  
Silas Little Experimental Forest New Jersey  
Sinkin Experimental Forest Missouri  
South Umpqua Experimental Forest Oregon  
Stanislaus–Tuolumne Experimental Forest California  
Starkey Experimental Forest and Range Oregon  
Stephen F. Austin Experimental Forest Texas  
Swain Mountain Experimental Forest California  
Sylamore Experimental Forest Arkansas  
Tallahatchie Experimental Forest Mississippi  
Teakettle Experimental Forest California  
Tenderfoot Creek Experimental Forest Montana  
Udell Experimental Forest Michigan  
Vinton Furnace Experimental Forest Ohio  
Wind River Experimental Forest Washington  
Young Bay Experimental Forest Alaska