Abstract: The present invention relates to a portable screening and stockpiling apparatus comprising a tracked chassis; a feed system mounted to the chassis for accepting material to be screened; means for moving the feed system upwards from a substantially horizontal transport position with respect to the chassis to an inclined working position at an angle to the chassis and from the inclined position downwards to the substantially horizontal position; a screen box supported on the chassis for accepting material from the feed system, wherein the screen box comprises a first deck for screening any material fed thereinto, whereby material of relatively finer and coarser fractions is adapted respectively to pass through the first deck and across the top of the first deck, a first folding conveyor mounted on the chassis beneath the screen box and feed system to receive fines material passing through the deck of the screen box and to convey same away from a first end of the apparatus; and a second folding conveyor mounted