When the Sierra Nevada was first formed, it was at a much lower elevation than it is today. About 25 million years ago, the terrain began to rise and slope to the southwest.
At that time, Yosemite was only part of a much larger mountain range. About 2 to 3 million years ago, the mountains had risen to the point where glaciers and ice sheets formed from time to time along the top of the range.
At its most expansive, the ice sheet would cover the highest parts of Yosemite. The glacier ice would then break loose and fall into the valley, taking its debris with it, helping to erode and change the landscape, forming what is now known as the Yosemite region.
The glacial history of the Sierra Nevada extends through millions of years and has undergone numerous glacial cycles of change. The most iconic of these is the Great Glacial Desert, located in the western part of the Sierra Nevada and covering 300 square kilometers, one of the largest mountain glaciers in the Northern Hemisphere.
The beauty of the Great Glacial Desert comes not only from its size but also from the landscape created by its glaciers. Here you can admire the exquisite glacial cultural heritage, including riverbeds, canyons, and moraines formed by glacial movements, as well as glacial crevasses and spectacular summit glaciers.
Due to glacial movements, geomorphic changes are everywhere in the Great Glacial Desert. Here you will encounter diverse landscapes, including peaks over 4,000 meters above sea level, uplifting icefalls, and fast-flowing rivers. At the same time, the Great Glacial Desert provides an excellent habitat for flora and fauna, meeting their needs for survival in a harsh environment.
Although the Nevada Glacier Mountains have been washed away over millions of years, the beauty and vitality that it presents are still astounding. In this one of the most mysterious and magnificent places in the world, you can step out from the bustling and noisy city and feel the original purity and simplicity of the earth and the most original and wonderful art creation of nature.
The charm of the Nevada Glacier Mountains is not only reflected in its unique landscape but also its diverse climate and ecological environment. There are endless grasslands and jungles, alpine lakes and valley rivers, and different climatic zones with different altitudes, forming a colorful ecosystem.
In the Nevada Glacier Mountains, you can see not only the most magnificent glaciers and summit glaciers in North America but also the ecological wonders of rare birds, wild animals, and alpine plants.
It is one of the world's last habitats for wild golden eagles, as well as spotted geese and other rare birds, and you can also see mountain goats, gray wolves, black bears, and other wild animals living here.
And nothing is more impressive than the seasonal transition of the Nevada Glacier Mountains. In winter, the glacier mountain range is covered with thick snow, the grass and trees wither, and the world becomes silent and mysterious. In spring, as the snow melts, the entire mountain range begins to recover, everything starts to revive, flowers bloom all over the mountain, and the fresh air and blue sky are intoxicating.
In this season, you can see wildflowers blooming, waterfalls surging, and streams flowing, and feel the endless burning of life force and the mysterious power of nature.
Not only that, but the Nevada Glacier Mountains are also well worth a visit in autumn when the red and yellow, beautiful and spectacular maple leaves and foliage color the whole valley like fire. Autumn here is very beautiful, calm, and slightly cool, attracting countless travelers to visit.