An elevatable trailer having a tongue adapted to be coupled to a towing vehicle. A frame provided with a tongue guide in which said tongue is movable forwardly and backwardly; and linkage and lever means comprising bell crank arms pivoted on the frame of the trailer and carrying wheels such that the linkage means pivots the bell crank arms and thereby elevates the frame when the tongue is pulled forward and latch means for latching the tongue in forward position relative to the frame for maintaining the frame in elevated position relative to the ground and on the wheels carried by the bell crank arms. The disclosure also relating to novel frame guide and latch means for guiding the tongue relative to the frame and for latching the tongue in forward position. The disclosure also relating to the novel scissor linkage mechanism interconnecting a pair of bell crank arms by means of suspension springs and tension rods to provide efficient tandem axle lifting of an elevatable trailer frame. The disclosure also relating to means for locking wheels of the trailer in relation to the bell crank arms so that the wheels are frictionally held on the ground while the tongue of the trailer is pulled forward and the bell crank arms are thereby pivoted relative to the frame for elevating it upwardly from the ground level.