MAMMOTH HOT SPRINGS, WY – Yellowstone National Park experienced the second busiest year on record in 2017. The park recorded 4,116,525 visits, a decrease from 2016. Last year was a record year for visitation with 4,257,177 visits to the park. Since 2008, annual visitation to Yellowstone has increased by close to 40 percent. This growth has caused park managers to consider many questions: