The 10 most common geomorphic features are identified for the state of North Carolina using Lidar derived DEMs at 30 ft. resolution. This product uses r.geomorphon, a feature in GRASS GIS, to calculate the geomorphic features for the state. The tool requires a user input length scale and slope for calculation. This dataset uses 60 cells, or 1800 ft. as the length scale and two different slope values of 1 degree (Blue Ridge/Piedmont ecoregion) and 0.0001 degree (Coastal Plain ecoregion).
Geomorphon Common Forms in North Carolina