Yellowstone National Park remains the most visited park in the United States. Although the interest is great, millions of visitors can also hurt the park's well-being. We have seen several examples of ...

The breathtaking beauty of Yellowstone National Park and its stunning hydrothermal features may have you exclaim: "Hold on to your hats!" The U.S. Geological Survey asks you to take that literally.

Left: A Yellowstone National Park team member uses a long grabber pole to remove a park map, presumably blown from a visitor's hand or pack by the wind, from a thermal feature. Right: A Yellowstone ...

28 July 2026 – 5 days for US$4,995* per person (*based on 2025 prices, subject to increase). Step into one of the most wildlife-rich landscapes in the continental US, the iconic Lamar valley of ...

Just some of the hats collected by the Yellowstone National Park Geology Program from sensitive thermal areas throughout the park in 2025. (Margery Price/NPS via SWNS) By Dean Murray Geologists at ...

YELLOWSTONE NATIONAL PARK, Wyo. – The breathtaking beauty of Yellowstone National Park and its stunning hydrothermal features may have you exclaim: "Hold on to your hats!" The U.S. Geological Survey ...

Geologists at Yellowstone National Park have pulled more than 300 lost hats from the famous hot springs. The headwear, estimated to be worth over $6,000, is among a range of items collected so far ...