Nouns denoting natural objects (not man-made)

bilestone
a calculus formed in the gall bladder or its ducts
 
horsepond
a pond for watering horses
 
Skagens Odde
a cape on the northernmost tip of Jutland between the Skagerrak and the Kattegatt
 
Cascade Mountains
a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range
 
Orinoco River
a South American river 1,500 miles long; flows into the South Atlantic
 
Timor Sea
an arm of the eastern Indian Ocean between Timor and northern Australia
 
creek
a natural stream of water smaller than a river (and often a tributary of a river)
 
Rhine River
a major European river carrying more traffic than any other river in the world; flows into the North Sea
 
moraine
accumulated earth and stones deposited by a glacier
 
divot
a piece of turf dug out of a lawn or fairway (by an animals hooves or a golf club)
 
Galveston Bay
an arm of the Gulf of Mexico in Texas to the south of Houston
 
rift
a narrow fissure in rock
 
Ceres
the largest asteroid and the first discovered
 
Irrawaddy River
the main river of Myanmar rising in the north and flowing south through the length of Burma to empty into the Andaman Sea
 
Lake Champlain
a lake in northeastern New York, northwestern Vermont and southern Quebec; site of many battles in the French and Indian War and in the American Revolution and in the War of 1812
 
Virgo
a large zodiacal constellation on the equator; between Leo and Libra
 
sandpit
a large pit in sandy ground from which sand is dug
 
constellation
a configuration of stars as seen from the earth
 
riverbank
the bank of a river
 
ozone hole
an area of the ozone layer (near the poles) that is seasonally depleted of ozone
 
  List More