A small-scale terrace—usually a series of such formations occurring on hillsides with steep elevations, thus creating a ribbed pattern of low ledges running parallel and at equal distance from each other—is called a terracette. The geological occasion of this slippage is uncertain, but terracettes are often thought to be evidence of soil creep, of overgrazing by animals on the slope, or perhaps the result of earthen or geologic material standing at an angle too great to sustain stability. Terracettes are colloquially called sheep tracks in hilly areas where the animals tend to use them as walkways.

Patricia Hampl