NPSU CODE: Deciphering the four-letter National Park Service units codes
I’m an avid bumper-sticker reader when I’m on the road, especially if I recognize a national park connection. I apologize if you’re that car with two dozen stickers on the back window that I’ve tailgated as I did a park inventory. Know that I’m super-jealous of your car’s adventures. One common sticker is an oval, …
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