Old, faithful and slowing down: Due to recent droughts, the time between eruptions at Yellowstone National Park's Old Faithful geyers is getting longer.Courtesy RmhermenVacation season is upon us and if you're planning to go to Yellowstone National Park, prepare to wait a little bit longer to see Old Faithful erupt. Due to several years of drought, the iconic geyser has been erupting at longer intervals in recent years. Read more about it here to find out excactly how much longer the waiting time is between eruptions.