From Wikipedia, the free encyclopedia
Blue John may refer to:
- Blue John, Kentucky
- Derbyshire Blue John, a form of fluorite mined in Derbyshire, England
- Blue John Cavern, a cavern in Castleton, Derbyshire where fluorite is mined
- Blue John Canyon, a canyon in Utah, United States, site of the Aron Ralston accident
- Blue John (album), an album by organist John Patton
- Lance-Constable Bluejohn, a character in the Discworld series, a member of Ankh-Morpork City Watch
- Blue John Gap, a fictional location in Arthur Conan Doyle's short story The Terror of Blue John Gap
|This disambiguation page lists articles associated with the title Blue John.
If an internal link led you here, you may wish to change the link to point directly to the intended article.