Introduction to Muir Glacier: Muir Glacier, located in Glacier Bay, protrudes at the northern tip of Alaska. It is named after the scientist Muir. The long and narrow Glacier Bay extends about 105 kilometers inland, and there are more small bays on the edge (actually carved out by glaciers). Most of these small bays are ice walls that rise suddenly. This ice wall is the nose of the iceberg extending from the slope to the coast. Since 1982, Muir Glacier has retreated rapidly. As the glaciers retreated, vegetation quickly replaced the glaciers and covered the surface. In addition to glaciers, the wildlife within glaciers also deeply attracts tourists from all over.