Muddy path through the endless veldt

We had to follow the dirt track in direction to our destination. Many other tracks crossing or passing the track we are on the way but sudden it could happen that the track we went, goes in wrong direction to the right or left. We'd to return and we went maybe 30 km wrong way. GPS navi or a compass does not help full in this situation. After sudden heavy rains the tracks change into impassable muddy quagmires.