WADN

WADN was a Folk & Acoustic music station licensed to Concord, Massachusetts from 1989 to the mid-1990s.  By 1997, all music-oriented programming was replaced with a Business & Finance format which now carries the call letters WBNW.  The Folk format lives on courtesy of a former WADN employee at "Troubadour 1700 AM."
Walden Pond is a lake in Concord made famous by philosopher Henry David Thoreau who lived there for two years.  His experience was penned in Walden; or, Life in the Woods which was published in 1854.