File:Wolf Trap (national park) sign.jpg
![File:Wolf Trap (national park) sign.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Wolf_Trap_%28national_park%29_sign.jpg/800px-Wolf_Trap_%28national_park%29_sign.jpg?20060704014952)
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Original file (4,350 × 3,037 pixels, file size: 4.49 MB, MIME type: image/jpeg)