What's the story of the iconic National Park Service ranger 'flat hat'?

Parks and Degradation: Mismanagement and Scandal in the National Park Service - Men's Journal

A comprehensive guide to the country's 63 national parks - Washington Post

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Ryan Curran White Golden Gate National Parks Conservancy

Park ranger-approved tips for visiting national parks

The iconic flat hat that National Park Service rangers wear has a long history, including one that harkens back to the dark days of fur

Hyper-visitation, the Fate of the National Parks, and Tourism Toxification in a Small Town

Female National Park Rangers on Their Career Paths and Love for the Great Outdoors

What's the story of the iconic National Park Service ranger 'flat hat'?

Worth Protecting - WPA Style National Park Print – National Park Posters