Logging & Timber Harvest

Commercial timber extraction is economically infeasible without road access.

The Threat

Logging & Timber Harvest — illustration
Logging & Timber Harvest

The Roadless Rule's most immediate practical effect has never been philosophical. It has been financial.

No timber company hauls logs out of a roadless forest. Without a road, there is no haul route. Without a haul route, there is no commercial timber sale. The rule does not prohibit logging because it objects to trees being cut. It prohibits roads — and in doing so, it makes commercial logging in these areas economically impossible.

Rescind the rule, and the economics change. Roads become permissible. Timber sales become viable. The sequence that has played out across millions of acres of previously wild national forest — road, then logging, then the compounding consequences of both — becomes available to apply to what remains.

Old forests are not simply large trees. They are structures. A forest that has never been commercially logged has standing dead trees — snags — riddled with cavities that Pileated Woodpeckers excavate and that dozens of other species subsequently inhabit. It has coarse woody debris on the floor — fallen logs in various states of decay, each stage a distinct habitat for different fungi, invertebrates, salamanders, and mosses. It has multi-layered canopy with gaps of different sizes and ages, each supporting different communities of plants and animals. Commercial logging removes not just the timber but the structure — and structure, once removed, takes a century or more to return.

The official definition of code 5.3 Logging, Harvesting & Controlling Trees encompasses "harvesting trees and other woody vegetation for timber, fiber, or fuel, including site preparation and other forestry management practices." Its exposition distinguishes timber operations in natural forests from plantations — the species in this database are threatened by the former.

In the roadless areas covered by this application: 256 species carry documented logging-related threats — including 19 critically imperiled and 46 imperiled species. For these organisms, the old-growth structural features that logging removes are not aesthetic preferences. They are the habitat those species require to survive.

Road Construction Nexus

No road means no haul route means no commercial timber extraction. Road construction is the prerequisite that makes logging economically feasible in these areas.

Severity of Impact

NatureServe rates the expected population decline for each species facing this threat, using the IUCN-CMP international standard.

SeveritySpecies
Extreme - serious
9
Extreme - moderate
4
Extreme or 71-100% pop. decline
2
Serious or 31-70% pop. decline
22
Serious - moderate
16
Serious - slight
13
Moderate or 11-30% pop. decline
30
Moderate - slight
9
Slight or 1-10% pop. decline
5
Negligible or <1% pop. decline
1
Neutral or Potential Benefit
2
Unknown
67

Species at Risk

Imperiled species (G1-G3 or federally listed) with NatureServe-assessed threat records in this category. Sort and filter to explore.

50 species
Species Rank ESAThreat Severity ▲Scope Areas
Frosted Flatwoods Salamander
Ambystoma cingulatum
G1T5.3 Logging & wood harvestingExtreme - moderateLarge (31-70%)4
Indiana Myotis
Myotis sodalis
G2E5.3 Logging & wood harvestingExtreme or 71-100% pop. declineSmall (1-10%)164
Ash Grey Indian-paintbrush
Castilleja cinerea
G1T5.3 Logging & wood harvestingExtreme - seriousPervasive - large5
Florida Torreya
Torreya taxifolia
G1E5.3 Logging & wood harvestingExtreme - seriousPervasive - large1
Wayne's Warbler
Setophaga virens waynei
T15.3 Logging & wood harvestingExtreme - seriousPervasive (71-100%)7
Eastern Indigo Snake
Drymarchon couperi
G2T5.3 Logging & wood harvestingExtreme - seriousSmall (1-10%)9
Sacramento Mountains Thistle
Cirsium vinaceum
G1T5.3 Logging & wood harvestingSerious or 31-70% pop. declinePervasive - large7
Yreka Phlox
Phlox hirsuta
G1E5.3 Logging & wood harvestingSerious or 31-70% pop. declineLarge - restricted7
Bunched Arrowhead
Sagittaria fasciculata
G2E5.3 Logging & wood harvestingSerious or 31-70% pop. declinePervasive - large1
Daubenmire's Dasynotus
Dasynotus daubenmirei
G25.3 Logging & wood harvestingSerious or 31-70% pop. declineLarge - restricted1
Larch Mountain Salamander
Plethodon larselli
G25.3 Logging & wood harvestingSerious or 31-70% pop. declineLarge - restricted5
Cheat Mountain Salamander
Plethodon nettingi
G1T5.3 Logging & wood harvestingSerious - moderateRestricted (11-30%)7
Georgia Rockcress
Arabis georgiana
G1T5.3 Logging & wood harvestingSerious - moderatePervasive (71-100%)3
Ozark Hellbender
Cryptobranchus alleganiensis bishopi
T1E5.3 Logging & wood harvestingSerious - moderateLarge - restricted3
Big Levels Salamander
Plethodon sherando
G25.3 Logging & wood harvestingSerious - moderatePervasive - large5
Caddo Mountain Salamander
Plethodon caddoensis
G25.3 Logging & wood harvestingSerious - moderateRestricted - small1
California Spotted Owl
Strix occidentalis occidentalis
T25.3 Logging & wood harvestingSerious - moderatePervasive - restricted159
Carolina Northern Flying Squirrel
Glaucomys sabrinus coloratus
T2E5.3 Logging & wood harvestingSerious - moderatePervasive - restricted25
Fourche Mountain Salamander
Plethodon fourchensis
G25.3 Logging & wood harvestingSerious - moderateRestricted (11-30%)1
Kiamichi Slimy Salamander
Plethodon kiamichi
G25.3 Logging & wood harvestingSerious - moderatePervasive (71-100%)1
Holmgren's Bittercress
Cardamine holmgrenii
G15.3.4 Unintentional effects: large scale (species being assessed is not the target) [harvest]Serious - slightLarge - restricted1
Louisiana Pigtoe
Pleurobema riddellii
G1PT5.3 Logging & wood harvestingSerious - slightRestricted (11-30%)3
Florida Scrub Lizard
Sceloporus woodi
G2UR5.3 Logging & wood harvestingSerious - slightLarge - restricted1
Benton County Cave Crayfish
Cambarus aculabrum
G1E5.3 Logging & wood harvestingModerate or 11-30% pop. declineSmall (1-10%)1
Gila Morning Glory
Ipomoea gilana
G15.3 Logging & wood harvestingModerate or 11-30% pop. declineRestricted (11-30%)2
Soapwort Gentian
Gentiana latidens
G15.3 Logging & wood harvestingModerate or 11-30% pop. declineSmall (1-10%)2
Wanatchee Mountains Checker-mallow
Sidalcea oregana var. calva
T1E5.3 Logging & wood harvestingModerate or 11-30% pop. declineRestricted (11-30%)4
Bolander's Woodreed
Cinna bolanderi
G25.3.4 Unintentional effects: large scale (species being assessed is not the target) [harvest]Moderate or 11-30% pop. declineRestricted (11-30%)5
Florida Skullcap
Scutellaria floridana
G2T5.3 Logging & wood harvestingModerate or 11-30% pop. declineLarge (31-70%)1
Gentner's Fritillary
Fritillaria gentneri
G2E5.3 Logging & wood harvestingModerate or 11-30% pop. declineUnknown9
Greenhorn Mountains Slender Salamander
Batrachoseps altasierrae
G25.3 Logging & wood harvestingModerate or 11-30% pop. declinePervasive (71-100%)8
Lyrate Mountainsnail
Oreohelix haydeni
G25.3 Logging & wood harvestingModerate or 11-30% pop. declineRestricted (11-30%)4
Great Lakes Jacob's-ladder
Polemonium lacustre
G15.3 Logging & wood harvestingModerate - slightPervasive (71-100%)1
Louisiana Pinesnake
Pituophis ruthveni
G1T5.3 Logging & wood harvestingModerate - slightUnknown2
Cactus Ferruginous Pygmy-owl
Glaucidium brasilianum cactorum
T2T5.3 Logging & wood harvestingModerate - slightRestricted - small20
Klamath Manzanita
Arctostaphylos klamathensis
G25.3 Logging & wood harvestingModerate - slightLarge (31-70%)4
Klamath Mountain Buckwheat
Eriogonum hirtellum
G25.3 Logging & wood harvestingModerate - slightLarge - restricted3
Millboro Leatherflower
Clematis viticaulis
G25.3 Logging & wood harvestingModerate - slightLarge (31-70%)3
Duskytail Darter
Etheostoma percnurum
G15.3 Logging & wood harvestingSlight or 1-10% pop. declineRestricted - small4
Magdalena Mountainsnail
Oreohelix magdalenae
G15.3 Logging & wood harvestingNegligible or <1% pop. declineSmall (1-10%)1
Cheoah Bald Salamander
Plethodon cheoah
G15.3 Logging & wood harvesting2
Jemez Mountains Salamander
Plethodon neomexicanus
G1E5.3 Logging & wood harvesting21
Little Colorado Spinedace
Lepidomeda vittata
G1T5.3 Logging & wood harvesting3
Smoky Madtom
Noturus baileyi
G1E, XN5.3 Logging & wood harvestingUnknownPervasive - large3
Bent Avens
Geum geniculatum
G25.3.5 Motivation unknown/unrecordedUnknownUnknown1
Goodding's Onion
Allium gooddingii
G25.3 Logging & wood harvestingUnknownUnknown1
Greenhorn Fritillary
Fritillaria brandegeei
G25.3 Logging & wood harvestingUnknownSmall (1-10%)8
Junaluska Salamander
Eurycea junaluska
G25.3 Logging & wood harvestingUnknownRestricted - small5
Mono Lake Lupine
Lupinus duranii
G25.3 Logging & wood harvestingUnknownSmall (1-10%)6
Muir's Tarplant
Carlquistia muirii
G25.3.4 Unintentional effects: large scale (species being assessed is not the target) [harvest]UnknownSmall (1-10%)4

Showing top 50 species. Use filters above to narrow results.

Areas at Risk

Roadless areas where imperiled species face this threat, grouped by state.

Arkansas (2)
AreaForestAcresSpecies at Risk
Brush HeapOuachita National Forest4,20510
Clifty CanyonOzark-St. Francis National Forest1,96310
California (6)
AreaForestAcresSpecies at Risk
Orleans Mtn.Klamath National Forest49,09015
SiskiyouKlamath National Forest54,03913
Siskiyou BSix Rivers National Forest18,87113
Slate Mtn.Sequoia National Forest12,29910
Bonanza KingShasta-Trinity National Forest16,4029
Lake EleanorShasta-Trinity National Forest3979
Florida (1)
AreaForestAcresSpecies at Risk
SavannahApalachicola National Forest1,92712
Georgia (5)
AreaForestAcresSpecies at Risk
Pink KnobChattahoochee National Forest12,12711
Kelly RidgeChattahoochee National Forest8,32510
Sarah's CreekChattahoochee National Forest6,88810
Joe GapChattahoochee National Forest5,3219
Lance CreekChattahoochee National Forest9,0259
Idaho (1)
AreaForestAcresSpecies at Risk
Bear CreekCaribou-Targhee National Forest118,58210
North Carolina (21)
AreaForestAcresSpecies at Risk
Chunky Gal (addition)Nantahala National Forest3,33616
Graveyard Ridge (addition)Pisgah National Forest1,95816
Sam Knob (addition)Pisgah National Forest2,57615
BearwallowPisgah National Forest4,11313
Laurel MountainPisgah National Forest5,68313
Big Indian (addition)Nantahala National Forest1,15512
Cheoah BaldNantahala National Forest7,79512
Middle Prong AdditionPisgah National Forest1,85212
Overflow CreekNantahala National Forest3,37912
SnowbirdNantahala National Forest8,48912
Wesser BaldNantahala National Forest4,06112
Balsam ConePisgah National Forest10,59111
Harper CreekPisgah National Forest7,32511
Lost CovePisgah National Forest5,94411
South Mills RiverPisgah National Forest8,58811
Tusquitee BaldNantahala National Forest13,67011
Bald MountainPisgah National Forest11,08510
Jarrett CreekPisgah National Forest7,48510
Barkers Creek (addition)Nantahala National Forest9759
Boteler PeakNantahala National Forest4,2059
Cherry Cove (addition)Nantahala National Forest8369
Oregon (1)
AreaForestAcresSpecies at Risk
North KalmiopsisSiskiyou National Forests91,56011
South Dakota (1)
AreaForestAcresSpecies at Risk
Indian CreekBuffalo Gap National Grassland24,66612
Tennessee (8)
AreaForestAcresSpecies at Risk
Brushy RidgeCherokee National Forest7,46914
Sycamore CreekCherokee National Forest6,98413
Upper Bald RiverCherokee National Forest9,20213
Sampson Mountain AdditionCherokee National Forest3,06411
Bald MountainCherokee National Forest11,74310
Stone MountainCherokee National Forest5,36710
Bald River Gorge AdditionCherokee National Forest1,7289
Flint Mill GapCherokee National Forest9,4949
Virginia (1)
AreaForestAcresSpecies at Risk
Kelley MountainGeorge Washington National Forest7,5909
West Virginia (3)
AreaForestAcresSpecies at Risk
Seneca CreekMonongahela National Forest22,28711
Canaan LoopMonongahela National Forest7,8679
Cheat MountainMonongahela National Forest8,1919

IUCN Threat Classification

Official definitions from the IUCN-CMP Unified Classification of Direct Threats.

5.3 — Logging, Harvesting & Controlling Trees (v4.0)
Definition: Harvesting trees and other woody vegetation for timber, fiber, or fuel, including site preparation and other forestry management practices; includes non-lethal coppicing and accidental mortality/bycatch.
Exposition: Felling trees to clear agricultural land goes in the appropriate category in 2. Agriculture & Aquaculture. If it is a few timber species that are planted on a rotation cycle, it belongs in 2.2 Wood & Pulp Plantations. If it is multiple species or enrichment plantings in a quasi-natural system, it belongs here. Also includes logging to manage or control forests, unless it is primarily for fire management which belongs in 7.1 Fire & Fire Management.
Roadless relevance: Commercial timber extraction is economically impossible without road access. The Roadless Rule's prohibition on road construction is, in practical terms, a prohibition on commercial logging in these areas.

Co-occurring Threats

Roads rarely cause a single type of harm. This threat frequently co-occurs with:

Data Sources

  • NatureServe Explorer: species threat assessments using IUCN-CMP v3.2
  • IUCN-CMP Threat Category 5.3
  • IUCN-CMP v4.0: Salafsky et al., Conservation Biology, 2025

Logging & Timber Harvest

Logging & Timber Harvest — illustration