July 2016, with 120,958 visits, had the highest monthly visit count for Lassen since the start of monthly data collection in 1979. Half of national park visitation happened in 26 parks but visitation growth from 2015 to 2016 was greater, by 13 percent to 9 percent, in parks that see more modest annual visitation. The National Park Service centennial and Find Your Park initiative, launched with the National Park Foundation, combined with other national park anniversaries, popular events such as the Centennial BioBlitz, good travel weather and programs such as Every Kid in a Park helped to drive the record visitation.