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Fernow Experimental Forest

[photo:] Fall foliage in the central Appalachian Mountains.

The Appalachian Mountain chain represents the backbone of the Eastern United States. The heart of these renowned highlands—the Central Appalachians—represent one of the world’s foremost examples of intact, diverse temperate forests and well-connected waterways. The Central Appalachian forests are an essential resource to millions of people. Both people and nature rely on the benefits its forests and rivers provide, from critical habitat for more than 200 globally rare plants and animals, expansive spaces for outdoor recreation, safe drinking water and clean air for millions of Americans, and timber products vital to the regional economy. 

Research at the Fernow Experimental Forest provides the science needed to support sustainable management of the many forest types across the Central Appalachian region.  

Background Information and History

The Fernow Experimental Forest (hereafter Fernow) is a designated special research area established in 1934 within the Monongahela National Forest. The Fernow is a 4,700-acre outdoor laboratory and classroom in the mountains of Tucker County, West Virginia, named in honor of Bernhard Fernow, a pioneer in American forestry research. The Fernow was originally established to address water quantity, water quality, and timber quality issues. Research on the Fernow was terminated during World War II; however, a new research program was reinitiated in 1948 to study the silviculture of mixed hardwood forests and watersheds of the Central Appalachians. Today, forest health and clean water are still a focus. Data collected on the Fernow are also contributing to research issues of today, such as biodiversity, endangered species management, carbon sequestration, atmospheric deposition, and climate change.

Scientists at the Fernow Experimental Forest have:

  • Contributed to design of Best Management Practices that protect water quality while also permitting forest operations.
  • Developed two-age management as an alternative to clearcutting and provided demonstrations of different types of forest management, such as even-age and uneven-age management.
  • Researched management actions to support high-elevation red spruce ecosystem restoration.
  • Explored prescribed fire to sustain central Appalachian mixed-oak forests and better understand fire effects on some wildlife species.
  • Answered questions about ecosystem properties related to climate change as part of the national Experimental Forest network.
  • Contributed to the Central Appalachian Forest Vulnerability assessment considering anticipated global changes in climate over the next century.
  • Provided hydrological and stream chemistry data for the past half-century that are freely available on the internet and are one of the most downloaded Forest Service data sets nationally.
  • Demonstrated the resiliency of upland woodland salamander communities to prescribed fires of low to moderate intensities.
  • Contributed to demonstrating that the central Appalachian Mountains provide important winter habitat for golden eagles.

Ecology

[photo:] Elklick Run, the primary third-order stream on the Fernow Experimental Forest.

The Fernow lies in the Allegheny Mountain section of the unglaciated Allegheny Plateau. Elevations range from 1,750 to 3,650 feet; hillslopes are generally steep, and soils are shallow. Bedrock is composed of sandstone and softer shale underlies most of the experimental forest, but a belt of Greenbrier limestone exists about midway upslope on McGowan Mountain, which supports a highly productive zone of soil in the Belmont series.  Most Fernow soils belong to the Calvin and Dekalb series, which are more acidic and less productive than soils derived from limestone.  The area has a rainy and cool climate. Mean annual precipitation is about 58 inches, with most occurring in the winter, spring, and summer. The mean annual temperature is about 48 degrees Fahrenheit, and the frost-free season lasts about 145 days.

The Fernow encompasses most of the Elklick Run drainage. Elklick Run drains into the Black Fork River and has seven larger named tributaries and several smaller unnamed tributaries. Elklick Run was dammed in 1936 just below its confluence with Camp Hollow Run to create a drinking water reservoir for the town of Parsons. The reservoir still exists but has not provided drinking water since 1996.

The forest is classified as second-growth, developed after exploitative logging in the early 1900s.  The mixed mesophytic forest has characteristics of mixed-oak and northern hardwood forest types. Upland oaks are the most common species group, but American beech, red and sugar maple, yellow-poplar, black cherry, cucumbertree, sweet birch, and American basswood are common species found on the Fernow. A wide variety of wildlife can be observed on the Fernow, including white-tailed deer, black bear, wild turkey, ruffed grouse, red and grey foxes, squirrels, many rodents, and many species of neotropical migratory songbirds. Brook trout, blacknose dace, and mottled sculpin occur in perennial streams of the Fernow. Suckers and sunfish have been observed in the reservoir.

Facilities Information

[photo:] Timber & Watershed Laboratory in Parsons, WV – administrative office for the Fernow.

Facilities associated with the Fernow are located at or near the Timber & Watershed Laboratory in Parsons, West Virginia. The Laboratory houses all research staff offices, a water quality laboratory, and a small conference room. Nearby facilities include another laboratory, a workshop, a greenhouse, and short-term guest housing. The Cheat Ranger District of the Monongahela National Forest is also located at this site.

The Fernow is accessed by County Road 219/7, the Brooklyn Heights Road, from U.S. Route 219 in Parsons, West Virginia. The Timber & Watershed Laboratory is located on FR50 off U.S. Route 219 just east of Parsons.

Fernow Experimental Forest: latitude 39°3′16″ N, longitude 79°41′0″ W
Timber & Watershed Laboratory: latitude 39°5′35″ N, longitude 79°39′47″ W

Contacts are:

Visitor Information

[photo:] Most forest roads on the Fernow are open to the public year-round.

Visitors are welcome to tour the Fernow Experimental Forest. Signs are located along the main roads describing various research studies. A guided tour through the Forest can be arranged for interested groups by contacting the Site Administrator at 304-478-2000.

Hunting and fishing are allowed on the Fernow with the appropriate licenses. Wildlife viewing, bird watching, and wildflower walks are popular activities. Camping and the collection of plant materials are not permitted on the Fernow.

[map:] Illustrates locations of Fernow EF and NRS Research Laboratory

Contact

Three foresters in hard hats and orange vests examine the side of a black cherry tree for sapsucker damage
Photo Credit
USDA Forest Service photo by Cheryl Wiles.

Sapsucker damage on a black cherry tree in a silviculture plot on the Fernow Experimental Forest being examined by forester David Helon (front), forestry technician Alan Petukh (back left) and data manager Lacy Rucker (back right).

Research, Past and Present

Scientific studies on the Fernow have followed two lines of research, with considerable integration between them. Silvicultural research focuses primarily on mixed hardwood stands and addresses questions about regenerating, growing, tending, and harvesting trees and stands. Watershed research addresses some basic questions about forest hydrology and water use by forests, as well as important issues related to roads, best management practices, and forest management effects on water and soil resources.

Many silviculture and watershed studies begun in the early 1950s continue today, adding to our knowledge of how forest management affects species diversity, log quality, regrowth, soil erosion, streamflow quantity and quality, microclimate, soil moisture regimes, and wildlife diversity and abundance. Over time, natural and human-induced disturbance factors have been incorporated into the research program, including acid deposition, non-native invasive species, and fire exclusion.

Today, research on the Fernow is multidisciplinary, and the focus includes aquatic and wildlife ecology topics. Current research topics include silviculture, hydrology, soil productivity, species restoration using fire, acid deposition effects on forest ecosystems, nutrient cycling, carbon allocation, and threatened and endangered species.

Cross-Site Research

The Fernow participates in several cross-site comparisons within the Forest Service network of Experimental Forests and Ranges. Studies include:

  • Effects of harvesting treatments on stream water quality
  • Effects of forest management and changing climate on streamflow
  • Effects of silvicultural treatment, site, and climate on growth
  • Quantifying uncertainty in ecosystem studies

Data from the Fernow has been extensively used in regional comparisons of nitrogen (N) cycling and ecosystem N processes, a testament to the quality and significance of the studies conducted at Fernow. A Fernow study is an affiliated site in the Long-Term Soil Productivity network, further highlighting its importance in the field of forest management and ecosystem studies.

Monitoring stations for two national networks are located at the Timber & Watershed Laboratory:

  • National Atmospheric Deposition Program National Trends Network (NADP NTN) site WV18
  • Clean Air Status and Trends Network (CASTNet) site PAR107

Conducting Research

Research at the Fernow is encouraged but must be managed to protect the environment, research infrastructure, other studies, and other researchers and technical staff. Studies that have the potential to disturb or alter the landscape must meet specific guidelines and may require formal environmental analysis.

All research on the Fernow Experimental Forest requires a study plan approved by the Fernow scientist-in-charge regardless of type, extent, duration, or impact.

If you are interested in conducting research at Fernow, please contact Benjamin Rau, the scientist in charge, before initiating the study.

Long-term Monitoring and Data

[image:] Map of the Fernow gauged watersheds.

Watershed research was begun on the Fernow in 1951 when different levels of harvesting and different harvesting techniques were applied to several watersheds. Basic questions about forest hydrology and water use by forests, as well as important questions related to forest roads, best management practices, and forest management effects on water and soil resources have been research topics over the past 60 years. Long-term monitoring sites (60+ years) include seven gauged watersheds, where streamflow is measured continuously, and two weather stations, where precipitation, temperature, and several other meteorological measurements are collected.  Three additional watersheds have been instrumented to measure streamflow since the mid-1980s.

[photo:] 1954 Fernow field trip participants.

Although the Fernow Experimental Forest does not have a formal public education program, research results from the Fernow are conveyed in many ways, including more than 1,200 scientific journal articles and government publications, presentations at conferences for land managers and other scientists, field trips, videos, web presentations, workshops, and classroom instruction.  The original demonstration objective of the Fernow is alive and well, and many guided tours of the experimental forest are provided each year to students, resource professionals, policy makers, and landowners.  Signage along the Fernow roads also shares information about experiments to area visitors.

[image:] Streamflow changes due to hardwood-to-conifer conversion on watershed 6.

Undergrad Resources

Long-term data sets from the Fernow are available for undergraduate projects in the fields of watershed management, forest management, forest ecology, and climate change. Opportunities exist for summer internships and employment. Interested students should contact a unit scientist working in their discipline of interest for more information.

Grad Resources

Opportunities are available for conducting graduate research projects on the Fernow EF or in collaboration with Fernow scientists. Current broad research areas include:

  • Silviculture treatment effects on growth, diversity and threatened and endangered species
  • Prescribed fire for species restoration and wildlife habitat creation
  • Acid deposition effects on forested ecosystems

Please contact Benjamin Rau to discuss research you are interested in doing on the Fernow.

Key Personnel

Staff

  • Person

    Cheryl Wiles

    Physical Scientist
  • Person

    Lacy Rucker

    Natural Resource Specialist
  • Person

    Christopher S. Cassidy

    Hydrologic Technician
  • Person

    Raymond Hockman

    Engineering Equipment Operator
  • Person

    Jeffrey Pennington

    Engineering Equipment Operator
  • Person
    USDA Forest Service Logo

    Tyler Sharretts

    Hydrologic Technician
  • Person

    Alan Petukh

    Forestry Technician
  • Person

    Patrick R. Meyer

    Facility Operation Specialist

Collaborators

  • West Virginia University

  • Fernow Experimental Forest LTREB

  • Virginia Polytechnic Institute

  • University of Wisconsin

  • Chatham University

  • University of Pittsburgh

  • Southern Illinois University

  • The Pennsylvania State University

  • Canaan Valley Institute

  • Academy of Natural Sciences in Philadelphia

  • Pinchot Institute for Conservation

  • Department of Energy

  • Monongahela, George Washington-Jefferson, and Allegheny National Forests

  •  Natural Resources Conservation Service (NRCS)

Data and Tools

Webinars

Recent Publications

Publications

Understory Publications

Last updated September 23, 2025