Places where plates slide past each other are called transform boundaries. Since the plates on either side of a transform boundary are simply sliding past each other and not tearing or crunching each other, transform boundaries lack the spectacular features found at convergent and divergent boundaries. Instead, transform boundaries are marked in some places by linear valleys along the boundary where rock has been ground up by the sliding. In other places, transform boundaries are marked by features like stream beds that have been split in half and the two halves have moved in opposite directions. Although transform boundaries are not marked by spectacular surface features, their sliding motion causes lots of earthquakes and destruction.