Low water levels close the Green River Ferry at Mammoth Cave National Park.
The ferry will remain closed until the level of the river rises to where it is safe to ferry vehicles across.
Weather data collected at the park shows annual rainfall totals are ten inches below the 30-year average.
The Houchins Ferry near Brownsville, Ky., will continue to operate its regular schedule.
For more information, you can call 270-758-2166.