To celebrate the Aug. 25 centennial of the National Park Service, we asked readers to share their best photos — new and old — of national parks from across the United States.

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Here’s a gallery that starts with 10 winners of The Seattle Times’ national parks reader-photo contest, selected by Times editors and photojournalists. There were only so many prizes to go around, but there were many, many heart-winning photos among the 850+ entries, so scroll through the gallery to see more than 30 other submissions. Thanks to all who contributed!

 

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