Nouns denoting natural objects (not man-made)

loch
a long narrow inlet of the sea in Scotland (especially when it is nearly landlocked)
 
creek
a natural stream of water smaller than a river (and often a tributary of a river)
 
Namoi River
a river in southeastern Australia that flows generally northwest to join the Darling River
 
Zambezi River
an African river; flows into the Indian Ocean
 
Northern Cross
a cluster of 5 bright stars forming a cross in the constellation Cygnus
 
antineutron
the antiparticle of a neutron
 
Chimborazo
a mountain peak in the Andes in Ecuador (20,560 feet high)
 
Moreau River
a river that rises in western South Dakota and flows eastward to the Missouri River
 
wall
a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
 
rabbit burrow
a hole in the ground as a nest made by wild rabbits
 
mire
a soft wet area of low-lying land that sinks underfoot
 
steps
the course along which a person has walked or is walking in
 
Gulf of Riga
an inlet of the Baltic Sea between Latvia and Estonia
 
Willamette River
a river in western Oregon that flows north into the Columbia River near Portland
 
Rhodope Mountains
a mountain range in the Balkan peninsula in southeastern Europe; extends along the border between Greece and Bulgaria
 
Cimarron River
a river that rises in northeastern New Mexico and flows eastward into Oklahoma where it becomes a tributary of the Arkansas River
 
chondrule
small granule (of e.g. chrysolite) found in some meteoric rocks
 
planetesimal
one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
 
Transylvanian Alps
a range of the southern Carpathian Mountains extending across central Romania
 
overthrust fault
a geological fault in which the upper side appears to have been pushed upward by compression
 
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