Land Mass
| Basic: |
| A land mass is a type of land topographical feature. |
| Documentation: |
| Comment: A generalization of LandBody . Each instance of #$LandMass is a large topographical features distingished from the surrounding features by abrupt and clearly delineated boundaries, generally by being of higher altitude. Examples include #$Continents, large #$Islands, and bulges rising above the 'datum' of planetary bodies are all elements of this collection. Instances include ContinentOfNorthAmerica on PlanetEarth, Ishtar Terra on PlanetVenus, Tempa Terra on PlanetMars, etc. |
| Miscellaneous: |
| Types of land mass include terras, landmasses, and continents. |