From 1920 to 1955 there used to be a railway line between Ferny Grove and Dayboro. It ran via Camp Mountain, Samford, west of present day Lake Samsonvale and north to a terminus at Dayboro.
This line was the scene of Queensland’s worst rail disaster in 1947, where 16 people were killed and 38 were injured. Even today it ranks as Australia’s second worst rail tragedy after Granville.
There’s not much of a trace of the old line left today except for a short rail-trail between Ferny Grove and Samford, and a Tunnel (affectionately called “The Bat Cave”) which is now used by Queensland University to research bats.
I’ve included the map here, and a link to the KML file here because I intend to visit some of the places on the map over the next few weeks to see if I can find any clues. Also, the map / kml might come in handy for anyone else interested in exploring the area.