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Yellowstone National Park

Thermal Kames: The Unique Glacial Hills Of Yellowstone’s Geyser Basins

Yellowstone is covered with evidence of glaciers. About 22,000 to 14,000 years ago, during the most recent ice age, ice draped the region to a thickness of a kilometer—that’s over half a mile! When the ice melted, it left debris everywhere, mantling much of the surface of Yellowstone National Park. For example, Hayden Valley, located between Yellowstone Lake and the Grand Canyon of the Yellowstone, contains glacial and lake sediment associated with multiple ice ages.

Photography In The National Parks: Wildlife In The Landscape

Sometimes, you see amazing wildlife during your national park adventure, but you just don’t have the right lens on your camera, or maybe your telephoto lens (or setting) doesn’t far enough reach for a sharp, close-up shot. Go ahead and capture that wildlife image anyway! You’ll have a beautiful landscape shot of the environment in which that wildlife dwells.

Geyser Night, Yellowstone National Park

Steaming geysers spray skyward to the starry night at Yellowstone National Park, Wyoming.

"Most of Yellowstone is free of artificial light. However, in developed areas throughout the park there are more than 5,000 light fixtures. In the past, visitors often encountered bright light fixtures illuminating streets and buildings in the park making it difficult to view the natural night sky. Now, light fixtures are being replaced with low wattage, energy efficient, fully shielded fixtures that direct light only downward. Currently, only 46% of light fixtures are on at night and 75% those are fully shielded; helping to further preserve nighttime wilderness."

NPS - Neal Herbert

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