[Defender3]

Sorry, should have read "40' diesel generator trailer." Preview twice, post once!

[B4Ranch]

I saved then enlarged the picture and yes it does appear to be a 40' diesel generator trailer with the dual doors to the right hand side of the shot. Can you determine what the silver cone just behind and above the fireman is? Just in front of the trailer, closer to the fenceline, it is divided by a shiny fencepost.