A large smial on the eastern slopes of the Tower Hills in the Westmarch of the Shire.

Undertowers was established by Fastred of Greenholm and his wife Elanor Gamgee when Fastred was made Warden of Westmarch in SR 1462 . Their descendants, known as the Fairbairns of the Towers lived there for many generations. The original volumes of the Red Book were kept in the library there and copies made for major archives elsewhere.
Encyclopedia entry originally written by cirdaneth