 Before urban development, the partially devastated lands caused by overgrazing during the Spanish period was still potentially capable of rebounding to their natural state. In 1964, the urban percentage was 3, while by 1988, it had increased to 18 percent. In the 1990s, the watershed was 32 percent urban, and the projected growth by 2050 is 50 percent. Many areas in the watershed now have no chance to revert to their natural state as long as human habitation continues.
