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 |
|---|---|---|---|
| Mt. Eddy | Shasta-Trinity National Forest | 26.2% | 767.52 |
| Bonanza King | Shasta-Trinity National Forest | 4.4% | 293.49 |
| Russian | Klamath National Forest | 3.5% | 309.06 |
| Castle Crags B | Shasta-Trinity National Forest | 3.4% | 22.05 |
| Snoozer | Klamath National Forest | 2.7% | 255.42 |
| Big Butte Shinbone | Mendocino National Forest | 2.6% | 44.19 |
| Packsaddle | Six Rivers National Forest | 1.6% | 25.38 |
| East Beegum | Shasta-Trinity National Forest | 1.6% | 55.35 |
| Kangaroo (CA) | Rogue River National Forests | 1.2% | 28.44 |
| Siskiyou | Klamath National Forest | 1.2% | 257.22 |
| Ship Mountain | Six Rivers National Forest | 1.1% | 53.46 |
| East Fork | Shasta-Trinity National Forest | 1.1% | 26.82 |
| Tom Martin | Klamath National Forest | 1.0% | 37.8 |
| North Fork Smith | Six Rivers National Forest | 1.0% | 155.97 |
| Kangaroo | Klamath National Forest | 1.0% | 158.13 |
| Siskiyou B | Six Rivers National Forest | 0.7% | 54.72 |
| Elk Creek | Mendocino National Forest | 0.6% | 53.28 |
| Orleans Mtn. | Klamath National Forest | 0.5% | 92.07 |
| Area | Forest | Coverage | Hectares |
|---|---|---|---|
| South Kalmiopsis | Siskiyou National Forests | 0.4% | 183.6 |
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.