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)
                                           (Mountain Range) Pacific Coast Ranges (Alaska, Canada, United States, Mexico)
                                             (Mountain Range) Coast Ranges (United States)
                                               (Mountain Range) Klamath Mountains (United States: California: Siskiyou County)
                                                 (Mountain Range) Siskiyou Mountains (United States: California: Siskiyou County)
                                                   (Mountain) Siskiyou Peak (United States: Oregon: Jackson County; 2,178 m)