Abstract: The invention allows an automated vehicle to reliably and repeatedly navigate any arbitrary area or path after being trained by an operator. This invention uses the Earth's magnetic and gravitational fields for directional vectors and uses optical shaft encoders mounted on a non-driving wheel to accurately measure the distance traveled. These sensory inputs are sufficient to accurately locate the vehicle in three-dimensional space and can be compared against a stored map to generate the navigational signal. Training the vehicle involves storing this sensory information in a computerized log as an operator moves the vehicle over the target area. Once the vehicle has been trained, it is able to recognize and navigate the terrain without the need for artificial landmarks or human intervention.