An articulated amphibious vehicle includes a boat in the front and a rear propulsion unit pivotally connected by an articulation mechanism to the boat. The rear propulsion unit comprises an engine mechanically coupled to a pair of drive tracks for propelling the vehicle. Steering and throttle devices are provided in the boat to enable the operator to turn and power the rear propulsion unit, to thereby steer and control the vehicle. The articulated amphibious vehicle can travel over water, snow, ice, marsh, bogs, swamp, soft wet terrain or even hard terrain (preferably by adding wheels to the boat). Because it can traverse such a wide variety of environments, this “track boat” is more versatile than conventional air boats or conventional all-terrain vehicles.