What does the National Park Service Arrowhead represent? Objective Identify natural and cultural resources that are protected by the NPS. Define the words: protect, preserve, provide Analyze photos of national parks to determine the resources that each manages. Understand that Glacier is one of numerous (418) NPS units across our nation and that each park is unique. Background Glacier National Park became America's 10th national park when it was established on May 11th, 1910 by President Taft. There are 391 NPS units in our nation. Approximately 60 sites are designated as parks; the others are Duration: 60 Minutes.