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A Beauty Undisturbed

Try to wrap your mind around the size of Wood Buffalo National Park in Canada. For starters, it has eleven million acres of forest, along with salt flats, bogs, and lakes. That makes it one of the largest national parks in the world, covering more area than the entire country of Switzerland! Because of its size, the park can effectively protect entire ecosystems. The park is very remote, located away from dense human settlements. Wood Buffalo safeguards part of the natural world at a time when undeveloped wilderness is becoming increasingly scarce.
In 1922, Wood Buffalo National Park was established with a specific purpose: to protect one of the last remaining herds of wild bison in Canada. To this day, it continues to be home to free- roaming bison herds while also providing a refuge for many other mammals including lynx, bears, moose, wolverines, and some exceptionally hard working beavers.
Wood Buffalo is actually famous for its determined beavers who, over the course of many decades, have worked together to build one of the world's largest beaver dams. From end to end, the dam is more than 2,600 feet long and is so large that it can be seen in satellite images taken from space. In fact, that's one of the only ways it can be seen because of its extremely remote location.
Unlike the remote beaver dam, Wood Buffalo has areas that are accessible to visitors and are ideal for observing birds. The park plays an important role in protecting birds and is one of the only remaining natural nesting areas for the endangered whooping crane. The crane nests in a part of the park where different sources of water come together: the Peace- Athabasca Delta. This large inland freshwater delta is where three rivers— the Peace, the Athabasca, and the Birch— merge with Lake Athabasca. In addition to the whooping crane, over two hundred other species of birds visit the area during their annual migrations.
Watching endangered birds is just one of many special experiences visitors can have in the park. On a summer hike, visitors might observe bison grazing in the grasslands or a wolf drinking at the edge of a lake. Visitors can swim in one of the park's many spring- fed sinkholes, each a beautiful turquoise color. In the winter, park visitors can cross ice bridges, go skating on one of the many ponds, or snowshoe through the quiet meadows.
For some, there is one experience at Wood Buffalo that stands out from the rest: viewing the aurora borealis, also called the northern lights. This celestial event occurs when charged particles from the sun interact with Earth's magnetic field, causing colorful streaks of light to appear in the night sky. Wood Buffalo is known for being one of the largest "dark sky preserves" on the planet. This area has no light pollution— no artificial light from buildings, signs, or street lamps. Lucky sky watchers are treated to a breathtaking light show above them, while surrounded on all sides by the earthly beauty of the park.
What is the text mainly about?
It is about Wood Buffalo, a national park that protects wildlife and offers rich outdoor experiences for visitors.
It is about Wood Buffalo, a national park which is almost totally silent due to the absence of birds.
It is about Wood Buffalo, a national park where bison and other large mammals can be hunted for sport.
It is about Wood Buffalo, a popular national park located just minutes away from Canada's largest city.
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