Circle vs Mountain

Circle

name

  • A town, the county seat of McCone County, Montana, United States. Named after a cattle brand in the form of a circle. 

  • A census-designated place in Yukon-Koyukuk Census Area, Alaska, United States. Erroneously thought to be on the Arctic Circle, which is 50 miles further north. 

  • the Circle line of the London Underground, originally the Inner Circle. 

  • A surname from German. 

Mountain

name

  • A village in North Dakota, United States. 

  • A surname. 

  • The Montagnard party in the time of the French Revolution. 

  • A town in Wisconsin, United States. 

noun

  • a steam locomotive of the 4-8-2 wheel arrangement. 

How often have the words Circle and Mountain occurred in a corpus of books? (source: Google Ngram Viewer )