A special information board has been erected at the location where Livingston forestry worker Robert Taylor claimed he was confronted by an unknown object in November 1979.
Mr Taylor said he encountered a metallic sphere hovering in a clearing in the woods. As he approached it, two smaller spheres emerged and starting to drag him towards the object before he lost consciousness.
Police investigating the incident found unusual marks in the clearing that did not match any known vehicle, and tests on his clothes showed it was likely they had been ripped by a sharp upward pull, such as a mechanical device.
The incident has fascinated people for the almost 40 years, due to the physical evidence and Mr Taylor's testimony as a very respected and credible witness.
Dechmont Law is managed by West Lothian Council, and offers amazing views across the region as the highest view point in Livingston. The 66 hectare open space is well-used for recreation, and is popular with local walkers and runners.
Executive councillor for the environment Tom Conn said: "The Dechmont Woods encounter is Scotland's most famous alleged UFO incident, and has featured in a number of books and TV programmes.
"The information board will help visitors to Dechmont Law find the exact location of the encounter, as well as give details of Mr Taylor's report of the incident.
"Dechmont Law is already very popular with local residents, especially runners and walkers, and we hope this board will help more people discover and enjoy the picturesque area."
For more details, please visit Dechmont Law