Nationalparks Free Stock Images

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Acadia National Park

Acadia National Park â€” A beautiful coastal view of the waves crashing at sandy inlet surrounded by a rocky coast in Acadia National Park. Granite underlies much of Acadia which helps gives the park it's rugged and rough character. Photo credit: John Mosesso, USGS.

High Sierra Dome

Glacial Dome against a dramatic sky in the High Sierras of Yosemite National Park in California. Glacial Dome against a dramatic sky in the High Sierras of Yosemite National Park in California

Dominica (Caribbean) - Trafalgar Falls - Morne Trois Pitons NP

Morne Trois Pitons National Park is a tropical forest blended with scenic volcanic features. It was recognised as a World Heritage Site on 4 April 1995. Morne Trois Pitons National Park is a tropical forest blended with scenic volcanic features. It was recognised as a World Heritage Site on 4 April 1995.

Dominica (Caribbean) - hikers at Trafalgar Fall - Morne Trois Pitons NP

Roseau Valley - Dominica is known as "The Nature Island of the Caribbean" due to its spectacular, lush, and varied flora and fauna. Roseau Valley - Dominica is known as "The Nature Island of the Caribbean" due to its spectacular, lush, and varied flora and fauna.

Mountain Pine Beetle Damage

Mountain Pine Beetle Damage â€” Mountain pine beetle have been a natural part of the whitebark pine forest for many, many years. Their population size (and thus the severity of their damage) was naturally controlled by extremely cold winter temperatures. But recently, winter temperatures have not been cold enough to kill the beetles and their populations have increased. Whitebark pines also used to be healthy and vigorous trees because of ample precipitation and moderate summer temperatures. However, a changing climate has physiologically stressed the trees, making them susceptible to beetle infestations. This on-two punch makes it difficult for the trees to defend themselves. At USGS, researchers are monitoring the health of productivity of these forests to determine the importance and impact of changes in pine nut production on grizzly bears in the Greater Yellowstone Ecosystem. Photo credit: Don Becker, USGS

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