Abstract: A wheeled trailer chassis is provided including a flat load bed and a rear end pivotally mounted loading ramp swingable between an operative rearwardly downwardly inclined position and an upright position closing the rear of the load bed. An ATV also is provided behind which the trailer maybe trailed and the ATV is loadable over the loading ramp onto the rear portion of the load bed of the trailer. The forward portion of the trailer load bed stationarily supports a slightly rearwardly inclined upright from whose upper end the lower end of a lift boom is pivotally supported, the upper end of the lift boom having an occupant receiving receptacle pivotally supported therefrom. A parallelogram link is connected between the upright and the receptacle and hydraulic cylinders are operatively connected between the lift boom and the upright for raising and lowering the lift boom.