Natura - nature actualia - actual entities Mundus Plinius - physical world Astra Plinius - celestial bodies Universe (Supercluster) Virgo-Hydra-Centaurus Supercluster (Supercluster) Virgo Supercluster (Cluster) Local Group (Galaxy) Milky Way Galaxy veter. (Spiral arm) Orion Arm (Region) Local Bubble Local Interstellar Cloud (Planetary system) Solar System (Planet-satellite system) Earth System (Planet) Earth veter. "spheres" (Earth) (Sphere) "surface" (Earth) (Continent) Americas (Continent) North America (Mainland) North America (Mountain Range) North American Cordillera (North America) 1 (Mountain Range) Pacific Coast Ranges (Alaska, Canada, United States, Mexico) 2 (Valley) Central Valley (California) 3 (Mountain Range) Nevadan Belt (North America) 4 (Plateau) Columbia Plateau (United States) 5 (Topographic basin) Great Basin (North America) 6 (Plateau) Colorado Plateau (United States: Utah, Colorado, New Mexico, Arizona) 7 (Mountain Range) Laramide Belt (North America)