How was glacier national park formed?

Answer 1

Glacier National Park was formed by an Act of Congress on May 11, 1910. George Bird Grinnell, editor of Forest & Stream (later Field & Stream) magazine and an early proponent of the park is given much credit for generating the will to establish Glacier as a park. At the time, Glacier was the 11th national park, though since Mackinaw Island was decommissioned, Glacier is typically referred to as the 10th national park. Glacier joined with Alberta's adjacent Waterton Lakes National Park in 1932 to create Waterton-Glacier International Peace Park (though both parks are still managed independently by their respective government agencies). Waterton-Glacier is also a UNESCO World Heritage Site and a UNESCO Man and Biosphere Reserve. Geologically, the formation of the park's features can be summarized in three phases: deposition, uplift, and erosion. The majority of the rocks in the park were formed in a shallow sea environment called the "Belt Sea." This ancient seabed harbored only some of the earliest and most primitive forms of sea life, stromatolites, and the oldest rocks in the park may be up to 1.5 billion years old. Other layers of rock in the park include siltstones and limestones. Much later, around the time of the dinosaurs, the mountains were thrust up as North America slid westward across the Pacific tectonic plate; a huge slab of rock called the Lewis Overthrust was shoved upward and eastward. Since then, the rock has eroded down, most dramatically during the Pleistocene Ice Age, when glaciers carved up the mountains and valleys.

Answer 2

how was glacier national park Alaska created

Answer 3

When President Taft created Glacier National Park in 1917, the park contained 150 glaciers. Now, however, there are only 26 glaciers left.