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.
| Area | Forest | Coverage | Hectares |
|---|---|---|---|
| Monarch | Sierra National Forest | 9.7% | 27.36 |
| Mokelumne - Charity | Humboldt-Toiyabe National Forest | 6.7% | 5.49 |
| Iceberg - Silver Mtn. | Humboldt-Toiyabe National Forest | 6.7% | 8.01 |
| Raymond Peak | Eldorado National Forest | 4.3% | 43.56 |
| Fawn Lake | Eldorado National Forest | 4.2% | 19.71 |
| Bucks Lake | Plumas National Forest | 3.9% | 10.62 |
| Bell Meadow | Stanislaus National Forest | 3.7% | 120.06 |
| Dardanelles | Lake Tahoe Basin Management Unit | 2.9% | 169.11 |
| Tioga Lake | Inyo National Forest | 2.8% | 9.36 |
| Dinkey Lakes | Sierra National Forest | 2.7% | 371.88 |
| Pyramid | Eldorado National Forest | 2.4% | 234.81 |
| Waterhouse | Stanislaus National Forest | 2.3% | 41.67 |
| Caples Creek | Eldorado National Forest | 2.3% | 168.3 |
| Poison Hole | Eldorado National Forest | 2.3% | 24.75 |
| Tragedy - Elephants Back | Eldorado National Forest | 2.2% | 185.22 |
| San Joaquin | Inyo National Forest | 2.2% | 171.36 |
| Condrey Mountain | Rogue River National Forests | 2.0% | 73.89 |
| Grouse Lakes | Tahoe National Forest | 1.9% | 143.82 |
| San Dimas | Angeles National Forest | 1.8% | 51.12 |
| Eagle | Stanislaus National Forest | 1.7% | 107.91 |
| Orleans Mtn. C | Six Rivers National Forest | 1.6% | 99.81 |
| Rock Creek West | Inyo National Forest | 1.6% | 22.95 |
| Pyramid | Lake Tahoe Basin Management Unit | 1.6% | 48.78 |
| Mt. Eddy | Shasta-Trinity National Forest | 1.5% | 44.19 |
| Polk Springs | Lassen National Forest | 1.5% | 57.33 |
| Dardanelles | Eldorado National Forest | 1.4% | 45.81 |
| Castle Peak | Tahoe National Forest | 1.3% | 81.63 |
| Chips Creek | Lassen National Forest | 1.2% | 145.17 |
| Ishi | Lassen National Forest | 1.2% | 105.03 |
| Mt. Raymond | Sierra National Forest | 1.2% | 33.48 |
| Cucamonga B | San Bernardino National Forest | 1.2% | 56.7 |
| Russian | Klamath National Forest | 1.1% | 100.17 |
| South Fork | Shasta-Trinity National Forest | 1.1% | 74.34 |
| Mokelumne - Hawkins Pk | Humboldt-Toiyabe National Forest | 1.1% | 70.47 |
| Devils Rock | Shasta-Trinity National Forest | 1.0% | 66.24 |
| Carson - Iceberg | Stanislaus National Forest | 1.0% | 226.08 |
| East Yuba | Tahoe National Forest | 1.0% | 71.91 |
| San Sevaine | San Bernardino National Forest | 1.0% | 27.27 |
| Dome | Stanislaus National Forest | 0.9% | 41.13 |
| Chinquapin | Shasta-Trinity National Forest | 0.9% | 79.38 |
| Blue Creek Rare I | Six Rivers National Forest | 0.8% | 40.05 |
| San Joaquin | Sierra National Forest | 0.8% | 71.73 |
| Freel | Lake Tahoe Basin Management Unit | 0.7% | 44.82 |
| North Fork American River | Tahoe National Forest | 0.5% | 84.69 |
| Kings River | Sierra National Forest | 0.5% | 108.99 |
| East Girard | Shasta-Trinity National Forest | 0.5% | 55.08 |
| Iceberg - Mill Creek | Humboldt-Toiyabe National Forest | 0.5% | 52.47 |
| Devil Gulch | Sierra National Forest | 0.5% | 55.8 |
| Orleans Mtn. | Klamath National Forest | 0.4% | 73.98 |
| Siskiyou | Klamath National Forest | 0.3% | 76.23 |
| Area | Forest | Coverage | Hectares |
|---|---|---|---|
| Rose - Davis Mdw. | Humboldt-Toiyabe National Forest | 2.1% | 20.07 |
| Rose - Galena | Humboldt-Toiyabe National Forest | 2.0% | 29.97 |
| Lincoln | Lake Tahoe Basin Management Unit | 1.1% | 28.98 |
| Area | Forest | Coverage | Hectares |
|---|---|---|---|
| Mcdonald Peak | Rogue River National Forests | 1.7% | 65.79 |
| North Kalmiopsis | Siskiyou National Forests | 0.3% | 101.79 |
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.