New Grand Canyon age research focuses on Western Grand Canyon

The age of the Grand Canyon (USA) has been studied for years, with recent technological advances facilitating new attempts to determine when erosion of this iconic canyon began. The result is sometimes conflicting ages based on different types of data; most data support the notion that the canyon began to erode to its current form about six million years ago. Then even newer, "high-tech," data became available and questions were again raised about whether the western end of the canyon could be older.

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