It was around 1430 local time in Denver. I was flying into Centennial and caught the traffic on gaurd frequency. He declared a mayday on gaurd and ended up talking to Denver TRACON and getting walked on by Flight Service. They switched him over to 133.? THe pilot didnt seem to flustered by the conjestion, only concerned with whether or not they would find the wreckage. Stated something about landing trying to land on a dirt road. If it was a Malibu, they are pretty wide to land on a dirt road...just saying. Hope they are ok.