North American Warm Desert Bedrock Cliff and Outcrop

EVT 9147
SparseSparsely vegetated
Roadless Areas (51)

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.

Arizona (35)

AreaForestCoverageHectares
Pipestem / Lower San FranciscoApache-Sitgreaves National Forests21.8%13.5
Lower San FranciscoApache-Sitgreaves National Forests17.5%4,202.91
SunsetApache-Sitgreaves National Forests16.9%1,974.51
Arnold MesaTonto National Forest16.6%16.65
PicachoTonto National Forest16.5%331.11
SalomeTonto National Forest12.9%152.73
PipestemApache-Sitgreaves National Forests12.3%1,727.37
Horse MesaTonto National Forest12.1%447.57
Mitchell PeakApache-Sitgreaves National Forests11.4%1,639.71
FritschePrescott National Forest11.3%651.69
Santa TeresaCoronado National Forest10.4%374.22
Hell HoleApache-Sitgreaves National Forests8.6%536.85
Painted BluffsApache-Sitgreaves National Forests8.5%1,481.04
PinalenoCoronado National Forest6.5%3,451.23
Cherry CreekTonto National Forest6.4%294.3
BoulderTonto National Forest6.2%1,019.07
GaliuroCoronado National Forest6.0%693.18
Walker MountainCoconino National Forest5.5%142.65
Black CanyonPrescott National Forest5.1%222.57
Sierra Ancha Wilderness ContiguousTonto National Forest5.1%159.66
Pine Mountain Wilderness ContiguousTonto National Forest5.0%130.59
HackberryPrescott National Forest4.8%17.91
Blind Indian CreekPrescott National Forest4.4%475.38
Boulder CanyonCoconino National Forest4.3%79.83
Pine Mountain Wilderness ContiguousPrescott National Forest3.8%48.33
HackberryCoconino National Forest3.6%261.27
HellsgateTonto National Forest2.8%70.38
Cimarron HillsCoconino National Forest2.7%56.97
Grief HillPrescott National Forest2.2%109.53
Arnold MesaPrescott National Forest1.8%90.36
Lime CreekTonto National Forest1.7%295.83
Sheridan MountainPrescott National Forest1.3%204.75
Ash CreekPrescott National Forest1.2%35.82
Hot AirApache-Sitgreaves National Forests1.1%146.34
MazatzalTonto National Forest1.1%76.41

California (1)

AreaForestCoverageHectares
Pyramid Peak ASan Bernardino National Forest1.1%62.28

New Mexico (15)

AreaForestCoverageHectares
Lower San FranciscoGila National Forest31.0%3,318.03
Brushy MountainGila National Forest6.0%174.42
Contiguous To Blue Range WildernessGila National Forest5.8%46.53
Hell HoleGila National Forest5.5%434.61
Taylor CreekGila National Forest4.6%311.76
Gila BoxGila National Forest3.6%341.46
1978 Administratively Endorsed Wilderness ProposalGila National Forest2.0%35.46
Devils CreekGila National Forest1.8%669.87
Sawyers PeakGila National Forest1.6%382.23
Contiguous To Gila Wilderness & Primitive AreaGila National Forest1.4%447.03
Meadow CreekGila National Forest1.3%185.13
San JoseCibola National Forest0.8%54.81
Apache Kid ContiguousCibola National Forest0.5%142.83
Eagle PeakGila National Forest0.5%68.58
Contiguous To Black & Aldo Leopold WildernessGila National Forest0.3%135
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.