Map and Index of the Ridges
- Ohio University provides a map, photographs, and building listings of The Ridges section of its campus, which was formerly the Athens mental hospital.
- http://www.cats.ohiou.edu/athens/greens/theridges.html

Justin's Haunts: The Ridges
- A photo gallery of the former Athens State Hospital buildings and grounds in Ohio.
- http://oak.cats.ohiou.edu/~jh347297/pictures.htm

Athens State Hospital
- Article on the history of this former mental hospital from "The Centennial Atlas of Athens County Ohio" (1905) by Fred W. Bush.
- http://ftp.rootsweb.com/pub/usgenweb/oh/athens/history/athens1.txt

Altered Dimensions: Athens Mental Health Center
- Ghost-oriented approach to the history of the former Athens, Ohio mental hospital.
- http://www.altereddimensions.net/ghosts/AthensMentalHealth.htm

About The Ridges
- Illustrated text from a speech by student Eric Root describing the history of the former Athens State Hospital in Ohio.
- http://oak.cats.ohiou.edu/~er362997/ridges.htm