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Home/Ecosystems/ Rocky Mountain Cliff Canyon and Massive Bedrock

Rocky Mountain Cliff Canyon and Massive Bedrock

EVT 9018
SparseSparsely vegetated
Roadless Areas (337)

Inventoried Roadless Areas where this ecosystem is present, identified from LANDFIRE 2024 Existing Vegetation Type spatial analysis. Coverage indicates the proportion of each area occupied by this ecosystem type.

Montana (120)

AreaForestCoverageHectares
Rock CreekCuster National Forest71.7%29.25
Proposed Line Creek PrnaCuster National Forest56.5%88.92
Lolo CreekBitterroot National Forest26.2%61.74
Crazy MountainsLewis and Clark National Forest19.3%1,947.33
Republic MountainGallatin National Forest19.2%65.07
Mt. JeffersonBeaverhead-Deerlodge National Forest17.1%309.6
Dixon MountainBeaverhead-Deerlodge National Forest17.0%252.45
Selway - Bitterroot (01067)Bitterroot National Forest14.1%6,536.34
Line Creek PlateauCuster National Forest13.9%1,400.94
Crazy MountainGallatin National Forest13.4%4,453.92
Middle Mtn. / Tobacco RootsBeaverhead-Deerlodge National Forest12.9%5,026.05
Scotchman PeaksIdaho Panhandle National Forests10.4%517.95
Bear - Marshall - Scapegoat - SwanLewis and Clark National Forest9.9%13,732.38
Mt. Gmt Area HCuster National Forest9.2%49.68
BridgerGallatin National Forest9.1%1,657.98
Chico PeakGallatin National Forest8.4%365.49
SawtoothLewis and Clark National Forest8.4%532.44
Garfield MountainBeaverhead-Deerlodge National Forest8.1%1,373.58
BeartoothCuster National Forest7.9%36.54
North AbsarokaCuster National Forest7.8%667.98
Tuchuck #664Kootenai National Forest7.8%70.38
Big Horn MountainBeaverhead-Deerlodge National Forest7.7%1,575.54
West Of WoodbineCuster National Forest7.2%55.71
Timber ButteBeaverhead-Deerlodge National Forest7.2%154.89
HighlandsBeaverhead-Deerlodge National Forest7.0%569.79
LionheadGallatin National Forest6.8%925.47
Tuchuck Ra 1482Flathead National Forest6.7%484.02
Big BaldyLewis and Clark National Forest6.5%1,140.75
Baldy MountainLolo National Forest6.5%170.19
Black ButteCuster National Forest6.3%22.05
Hyalite - Porcupine - Buffalo Horn Wilderness Study AreaGallatin National Forest5.9%3,459.6
ReefGallatin National Forest5.9%59.94
Storm LakeBeaverhead-Deerlodge National Forest5.9%221.13
Cabin Creek Wildlife Management Area OcdGallatin National Forest5.6%796.05
Mt. BaldyHelena National Forest5.4%360.81
Flint Range / Dolus LakesBeaverhead-Deerlodge National Forest5.4%1,292.67
Sawmill CreekLewis and Clark National Forest5.1%241.02
Red Lodge Creek HellroaringCuster National Forest4.9%341.64
Tw MountainLewis and Clark National Forest4.6%157.41
Big Snowy Mountains WsaLewis and Clark National Forest4.5%1,619.37
Mt. HighLewis and Clark National Forest4.3%588.51
Italian PeakBeaverhead-Deerlodge National Forest4.2%1,549.8
BeartoothGallatin National Forest4.2%88.92
Sourdough MountainBeaverhead-Deerlodge National Forest4.1%249.12
Sheep MountainBeaverhead-Deerlodge National Forest4.0%508.41
Mckay Creek #676Kootenai National Forest4.0%245.97
North AbsarokaGallatin National Forest3.9%2,491.74
Northwest PeaksIdaho Panhandle National Forests3.7%83.79
Freezeout MountainBeaverhead-Deerlodge National Forest3.6%1,435.5
MadisonGallatin National Forest3.6%1,852.83
Thompson Seton RA 1483Flathead National Forest3.3%702.27
Scotchman Peaks (MT)Kootenai National Forest3.3%721.8
Maple PeakKootenai National Forest3.2%46.71
Gallatin FringeGallatin National Forest3.2%663.66
Middle Fork Judith WsaLewis and Clark National Forest3.2%1,043.73
Burnt MountainCuster National Forest3.1%135.99
Bluff MountainLewis and Clark National Forest3.1%483.12
Maple PeakLolo National Forest3.0%79.56
Mmw Addition RA 01500Flathead National Forest2.8%9.36
Reservation DivideLolo National Forest2.8%189.45
Snowcrest MountainBeaverhead-Deerlodge National Forest2.8%1,089.63
Benchmark Ra 1126Flathead National Forest2.7%69.3
Bmss Ra 1485Flathead National Forest2.7%3,659.22
Bear - Marshall - Scapegoat - SwanLolo National Forest2.7%1,278.54
Fishtail SaddlebackCuster National Forest2.6%173.88
Black ButteBeaverhead-Deerlodge National Forest2.6%414.54
Four Eyes CanyonBeaverhead-Deerlodge National Forest2.6%73.53
Mckenzie CanyonBeaverhead-Deerlodge National Forest2.5%339.93
Ten Lakes #683Kootenai National Forest2.4%464.4
Lolo CreekLolo National Forest2.3%134.55
Northwest PeaksKootenai National Forest2.3%142.92
Granite MountainLewis and Clark National Forest2.2%93.24
East PioneerBeaverhead-Deerlodge National Forest2.0%1,182.87
West Big HoleBeaverhead-Deerlodge National Forest2.0%1,065.06
Big SnowiesLewis and Clark National Forest1.9%72.18
Upper East ForkBeaverhead-Deerlodge National Forest1.9%67.14
Bear - Marshall - Scapegoat - SwanHelena National Forest1.8%369.99
Cabinet Face West #670Kootenai National Forest1.7%95.76
Cabinet Face East #671Kootenai National Forest1.7%351.45
HoodooLolo National Forest1.7%724.41
Teepee - Spring CreekLolo National Forest1.6%89.46
Buckhorn RidgeIdaho Panhandle National Forests1.6%18.9
Thompson Seton #483Kootenai National Forest1.5%178.47
Tollgate - SheepLewis and Clark National Forest1.5%144.81
Cube Iron - SilcoxLolo National Forest1.5%222.84
Bear CreekBeaverhead-Deerlodge National Forest1.5%48.78
Mt. Hefty Ra 1481Flathead National Forest1.5%76.86
Cherry PeakLolo National Forest1.4%220.41
Blue Joint (mwsa) (01941)Bitterroot National Forest1.4%374.76
Coal Ridge Ra 1127Flathead National Forest1.4%87.3
Standard Peak Ra 1129Flathead National Forest1.3%44.91
Tash PeakBeaverhead-Deerlodge National Forest1.3%332.1
Goat MountainBeaverhead-Deerlodge National Forest1.3%49.68
Allan Mountain (01946)Bitterroot National Forest1.3%529.2
CataractLolo National Forest1.3%47.97
Ward EagleLolo National Forest1.2%42.03
Evans GulchLolo National Forest1.2%37.89
Marshall PeakLolo National Forest1.2%42.48
Marston Face # 172Kootenai National Forest1.1%39.6
Pilgrim CreekLewis and Clark National Forest1.1%191.07
Robinson Mountain #164Kootenai National Forest1.0%28.44
Meadow Creek - Upper North ForkLolo National Forest1.0%27.18
Buckhorn Ridge (MT)Kootenai National Forest0.9%128.7
SapphireBitterroot National Forest0.9%159.3
Trout CreekKootenai National Forest0.9%112.23
Stony MountainBitterroot National Forest0.9%159.03
Tenderfoot - Deep CreekLewis and Clark National Forest0.9%308.61
Granulated MountainBeaverhead-Deerlodge National Forest0.9%52.65
West PioneerBeaverhead-Deerlodge National Forest0.8%808.38
Deadhorse Ridge Ra 1128Flathead National Forest0.8%74.88
Flagstaff Mountain #690Kootenai National Forest0.8%34.2
Middleman Mountain / Hedges MountainHelena National Forest0.7%86.13
ElkhornHelena National Forest0.7%200.16
QuiggLolo National Forest0.6%169.02
SapphiresBeaverhead-Deerlodge National Forest0.5%146.79
Camas CreekHelena National Forest0.5%60.57
Sheep Mountain - StatelineLolo National Forest0.4%67.86
Silver KingBeaverhead-Deerlodge National Forest0.4%98.19
North Big HoleBeaverhead-Deerlodge National Forest0.4%78.48
Nevada MountainHelena National Forest0.4%74.25

Nevada (33)

AreaForestCoverageHectares
Moriah - Chalk Spr.Humboldt-Toiyabe National Forest11.1%4.23
Arc Dome - LeadbetterHumboldt-Toiyabe National Forest7.8%13.14
Ruby - Cold CkHumboldt-Toiyabe National Forest7.1%67.68
Humboldt - Checkers SWHumboldt-Toiyabe National Forest6.9%21.33
Snake - Lincoln CynHumboldt-Toiyabe National Forest5.3%6.75
Humboldt - Angel LkHumboldt-Toiyabe National Forest4.3%17.64
Ruby - SegundaHumboldt-Toiyabe National Forest3.7%187.56
Cabin CreekHumboldt-Toiyabe National Forest3.7%159.93
Humboldt - Checkers NEHumboldt-Toiyabe National Forest3.3%8.55
Ruby - Lamoille CynHumboldt-Toiyabe National Forest3.3%436.77
Santa RosaHumboldt-Toiyabe National Forest3.1%688.14
Snake - Pole CynHumboldt-Toiyabe National Forest2.9%9
Toiyabe RangeHumboldt-Toiyabe National Forest2.8%1,108.53
Bunker HillHumboldt-Toiyabe National Forest2.7%298.62
Rat Trap SpringHumboldt-Toiyabe National Forest2.5%61.92
Arc Dome - OphirHumboldt-Toiyabe National Forest2.4%54.99
ButtermilkHumboldt-Toiyabe National Forest2.2%175.86
Moriah - Hendrys Ck.Humboldt-Toiyabe National Forest2.2%20.52
Staunton RidgeHumboldt-Toiyabe National Forest2.1%88.56
Arc Dome - Cow CynHumboldt-Toiyabe National Forest1.8%31.68
South Fork QuinnHumboldt-Toiyabe National Forest1.6%261.63
South SchellHumboldt-Toiyabe National Forest1.5%775.89
Spanish PeakHumboldt-Toiyabe National Forest1.3%161.19
Masket PeakHumboldt-Toiyabe National Forest1.2%43.02
Snake - MurphyHumboldt-Toiyabe National Forest1.2%128.61
EightmileHumboldt-Toiyabe National Forest1.1%24.3
North SchellHumboldt-Toiyabe National Forest1.0%120.15
Pearl PeakHumboldt-Toiyabe National Forest0.9%257.22
Ward MountainHumboldt-Toiyabe National Forest0.8%49.5
Mt. ArdiveyHumboldt-Toiyabe National Forest0.7%109.26
WildcatHumboldt-Toiyabe National Forest0.7%77.94
White Rock MtnHumboldt-Toiyabe National Forest0.6%60.03
Rock CanyonHumboldt-Toiyabe National Forest0.4%57.42

New Mexico (6)

AreaForestCoverageHectares
Grace TractSanta Fe National Forest4.4%17.82
FallsSanta Fe National Forest4.3%43.56
Enchanted LakesSanta Fe National Forest2.5%13.05
PecosCarson National Forest2.5%136.98
Columbine - Hondo Wilderness Study AreaCarson National Forest2.2%385.02
Ryan HillCibola National Forest1.8%245.34

Oregon (14)

AreaForestCoverageHectares
GreenhornWallowa-Whitman National Forest7.7%4.14
Twin MountainWallowa-Whitman National Forest7.4%1,754.01
Greenhorn Mtn.Umatilla National Forest3.3%151.47
Monument RockWallowa-Whitman National Forest3.3%76.86
ReservoirWallowa-Whitman National Forest2.8%156.69
Boulder ParkWallowa-Whitman National Forest2.6%129.69
Greenhorn MountainMalheur National Forest2.5%163.44
Little Eagle MeadowsWallowa-Whitman National Forest1.9%54.81
Mcclellan MountainMalheur National Forest1.8%153.54
Marble PointWallowa-Whitman National Forest1.8%49.23
Glacier MountainMalheur National Forest1.6%133.02
Little SheepWallowa-Whitman National Forest1.4%30.51
Rock CreekOchoco National Forest1.3%57.69
Jumpoff JoeUmatilla National Forest1.2%27.54

Utah (103)

AreaForestCoverageHectares
WillardWasatch-Cache National Forest9.4%685.71
Mt. PealeManti-Lasal National Forest8.7%338.4
White MountainManti-Lasal National Forest8.5%245.7
Big Bear CreekManti-Lasal National Forest8.2%945.45
0401011Ashley National Forest7.2%880.47
Rolfson - StakerManti-Lasal National Forest6.5%184.95
0401014Ashley National Forest6.3%681.21
0401012Ashley National Forest6.2%1,171.8
White KnollManti-Lasal National Forest6.2%344.07
0401027Ashley National Forest6.1%179.91
Black MountainManti-Lasal National Forest5.7%148.59
0401010Ashley National Forest5.7%505.53
Tushar MountainFishlake National Forest5.4%869.85
Table Cliffs - Henderson CanyonDixie National Forest4.9%384.75
Bullion - DelanoFishlake National Forest4.7%282.69
Horse Mountain - Mans PeakManti-Lasal National Forest4.5%407.97
LakesWasatch-Cache National Forest4.3%2,138.22
Widdop MountainWasatch-Cache National Forest4.3%139.23
0401029Ashley National Forest4.0%109.62
Musinia PeakManti-Lasal National Forest3.9%76.86
0418033Ashley National Forest3.9%393.48
Mt. Um Plateau - Mt TerrillFishlake National Forest3.8%271.53
418024Uinta National Forest3.8%800.1
Biddlecome - Rock CanyonManti-Lasal National Forest3.8%279.36
Fishlake MountainFishlake National Forest3.8%383.58
0401008Ashley National Forest3.7%235.53
Wildcat KnollsManti-Lasal National Forest3.7%77.85
0419022Ashley National Forest3.7%33.12
Muddy Creek - Nelson Mt.Manti-Lasal National Forest3.5%829.44
418040Uinta National Forest3.4%23.13
Mt. NaomiWasatch-Cache National Forest3.3%567.09
0401013Ashley National Forest3.3%157.95
Musinia PeakFishlake National Forest3.1%83.79
Solomon BasinFishlake National Forest3.0%245.52
0401031Ashley National Forest3.0%85.95
0401009Ashley National Forest3.0%365.58
Big HorseshoeManti-Lasal National Forest2.8%198.72
White PineWasatch-Cache National Forest2.8%21.78
Straight CanyonManti-Lasal National Forest2.7%66.78
Twin PeaksWasatch-Cache National Forest2.7%68.13
South MountainManti-Lasal National Forest2.6%155.43
Thousand Lake MountainFishlake National Forest2.5%279.72
HeliotropeManti-Lasal National Forest2.5%45.99
Blue MountainManti-Lasal National Forest2.5%216.72
Birch CreekManti-Lasal National Forest2.5%79.65
Shay MountainManti-Lasal National Forest2.3%123.93
0419020Ashley National Forest2.3%3,270.96
Burch CreekWasatch-Cache National Forest2.3%63.18
418032Uinta National Forest2.2%135.27
Arch CanyonManti-Lasal National Forest2.1%110.7
Lookout PeakFishlake National Forest2.1%79.2
Hay LakesDixie National Forest2.0%182.43
0401016Ashley National Forest2.0%46.71
High Uintas (UT)Wasatch-Cache National Forest2.0%835.02
418011Uinta National Forest2.0%106.83
North FrancisWasatch-Cache National Forest2.0%65.25
Wayne WonderlandFishlake National Forest2.0%98.1
White MountainFishlake National Forest1.9%180.18
Twelve Mile CreekManti-Lasal National Forest1.8%74.88
Signal PeakFishlake National Forest1.8%225.09
0401001Ashley National Forest1.8%84.24
418018Uinta National Forest1.7%78.3
Hammond - Notch CanyonManti-Lasal National Forest1.7%114.93
East MountainManti-Lasal National Forest1.6%201.33
Ruin CanyonManti-Lasal National Forest1.6%53.46
Boulger - Black CanyonManti-Lasal National Forest1.6%149.94
Oak CreekFishlake National Forest1.4%316.98
Happy ValleyDixie National Forest1.4%84.42
Marysvale PeakFishlake National Forest1.4%127.35
418044Uinta National Forest1.3%29.61
Raft RiverSawtooth National Forest1.3%125.91
Casto BluffDixie National Forest1.3%456.75
Lewis PeakWasatch-Cache National Forest1.3%60.48
City CreekFishlake National Forest1.2%69.66
418019Uinta National Forest1.2%33.21
Mt. Logan SouthWasatch-Cache National Forest1.2%81.63
Long Neck Mesa / Steep Creek / Oak Creek - Steep Creek / OakDixie National Forest1.2%263.88
Horse ValleyDixie National Forest1.2%64.53
Beehive PeakFishlake National Forest1.1%261.18
418027Uinta National Forest1.1%60.75
TibadoreFishlake National Forest1.0%38.61
Mt. Johns Peak - Mt AliceFishlake National Forest1.0%49.68
418003Uinta National Forest1.0%43.29
Bunker CreekDixie National Forest1.0%29.25
Circleville MountainFishlake National Forest0.9%92.34
Bear Valley PeakDixie National Forest0.9%27.45
Upper South ForkWasatch-Cache National Forest0.9%59.94
418026Uinta National Forest0.9%49.86
0401007Ashley National Forest0.9%57.96
Allen Canyon - Dry WashManti-Lasal National Forest0.8%47.79
Nuck WoodwardManti-Lasal National Forest0.8%40.95
0401005Ashley National Forest0.8%131.04
Red Canyon NorthDixie National Forest0.8%33.48
LangdonFishlake National Forest0.8%40.68
Boulder Mtn. / Boulder Top / Deer LakeDixie National Forest0.8%361.35
SanpitchManti-Lasal National Forest0.8%88.83
Dark ValleyDixie National Forest0.7%80.82
North PavantFishlake National Forest0.7%141.03
Mt. Logan NorthWasatch-Cache National Forest0.6%44.28
418025Uinta National Forest0.6%73.62
Price RiverManti-Lasal National Forest0.6%54.36
PavantFishlake National Forest0.5%91.98
Hilgard MountainFishlake National Forest0.5%55.98

Washington (10)

AreaForestCoverageHectares
Bodie MountainOkanogan National Forest4.2%67.5
Bodie MountainColville National Forest3.5%34.47
Cougar MountainColville National Forest3.4%62.73
Jackson CreekOkanogan National Forest3.0%93.51
Clackamas MountainOkanogan National Forest2.9%144.09
Jackson CreekColville National Forest2.6%32.04
ThirteenmileColville National Forest2.5%126.36
Bald SnowColville National Forest1.6%149.58
South HuckleberryColville National Forest0.8%32.49
Abercrombie - HooknoseColville National Forest0.4%58.86

Wyoming (51)

AreaForestCoverageHectares
North BoundaryShoshone National Forest41.4%30.51
Headwaters Sunlight CreekShoshone National Forest20.4%497.97
Beartooth Proposed WildernessShoshone National Forest14.8%1,011.33
South Beartooth HighwayShoshone National Forest14.4%6,136.11
Franc's PeakShoshone National Forest13.7%3,799.62
South ForkShoshone National Forest13.2%3,463.83
Wapiti Valley EastShoshone National Forest13.2%23.94
ReefShoshone National Forest13.0%885.6
Wood RiverShoshone National Forest11.4%2,343.78
Pat O'haraShoshone National Forest11.4%504.27
Sulphur CreekShoshone National Forest8.6%1,056.51
Piney PassShoshone National Forest8.2%111.42
Wapiti Valley NorthShoshone National Forest8.1%603.9
Trout CreekShoshone National Forest6.9%1,227.06
Wapiti Valley SouthShoshone National Forest6.9%1,210.14
Wilderness Study AreaTarghee National Forest6.6%1,380.69
Phillips RidgeBridger-Teton National Forest6.1%247.77
Salt River RangeBridger-Teton National Forest6.0%5,721.66
South Wyoming RangeBridger-Teton National Forest5.9%2,057.76
Windy MountainShoshone National Forest5.4%685.17
Sleeping GiantShoshone National Forest4.8%100.17
Togwotee PassShoshone National Forest4.6%137.7
Snowy RangeMedicine Bow-Routt National Forest4.1%488.97
Telephone DrawShoshone National Forest3.6%303.93
Dunoir Special Management UnitShoshone National Forest3.4%404.37
Mowry PeakMedicine Bow-Routt National Forest3.0%76.86
Bench MarkShoshone National Forest3.0%71.19
West DunoirShoshone National Forest2.7%27.9
Mosquito Lake - Seven LakesBridger-Teton National Forest2.7%558.63
Pacific Creek - Blackrock CreekBridger-Teton National Forest2.6%255.96
PalisadesTarghee National Forest2.4%10.89
Little Popo AgieShoshone National Forest2.4%80.46
Grayback RidgeBridger-Teton National Forest2.3%2,713.68
East DunoirShoshone National Forest2.2%27.99
Carson LakeShoshone National Forest2.1%36.18
Sheridan PassShoshone National Forest2.1%70.83
Lake Alice - Commissary RidgeBridger-Teton National Forest1.8%1,246.59
Hideout CreekBighorn National Forest1.7%68.04
Warm Spring CreekShoshone National Forest1.7%41.58
West Slope TetonsTarghee National Forest1.3%240.12
Spread Creek - Gros Ventre RiverBridger-Teton National Forest1.1%769.05
Munger MountainBridger-Teton National Forest1.0%51.84
Middle ForkShoshone National Forest0.9%195.93
Devils CanyonBighorn National Forest0.8%118.35
Bear RocksBighorn National Forest0.8%76.05
Gros Ventre MountainsBridger-Teton National Forest0.7%282.51
Horse Creek MesaBighorn National Forest0.6%192.69
Cloud Peak ContiguousBighorn National Forest0.4%196.2
Gannett Hills - Spring CreekBridger-Teton National Forest0.4%75.24
West Slope WindsBridger-Teton National Forest0.3%187.11
Little BighornBighorn National Forest0.2%126
Methodology and Data Sources

Ecosystem classification: Ecosystems are classified using the LANDFIRE 2024 Existing Vegetation Type (EVT) layer, mapped to NatureServe Terrestrial Ecological Systems via a curated crosswalk. Each EVT is linked to the USNVC (U.S. National Vegetation Classification) hierarchy through pixel-level co-occurrence analysis of LANDFIRE EVT and NatureServe IVC Group rasters across all roadless areas.

Vegetation coverage: Coverage percentages and hectares are derived from zonal statistics of the LANDFIRE 2024 EVT raster intersected with roadless area boundaries.

Ecosystem narratives and community species: Sourced from the NatureServe Explorer API, representing professional ecological assessments of vegetation composition, environmental setting, dynamics, threats, and characteristic species assemblages.

IVC hierarchy: The International Vegetation Classification hierarchy is sourced from the USNVC v3.0 Catalog, providing the full classification from Biome through Association levels.

Component associations: Plant community associations listed as components of each NatureServe Ecological System. Association data from the NatureServe Explorer API.

State ranks: Conservation status ranks assigned by NatureServe member programs in each state where the ecosystem occurs.