Bob, I believe that the bikes were actually just dumped at the end of the air strips, hence them being a bit of fair game and yep, they would have been used around the base I guess. I can't imagine that they'd have bothered to bury anything quite frankly! Though if there really is stuff buried, it would be interesting to know what is buried up around Bamaga where apparently there were a heck of a lot of military up there in WW2. Judging by the amount of rusting 44 gallon drums I saw in the scrub around Bamaga airport, there must have been a heck of a lot of aircraft. Makes you wonder really, doesn't it...