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| Keywords: glacier national park glaciernationalpark trail backcountry hiking backpacking mountains scenery glaciers alpine rocks geology 1.6 billion years ago, long before park, mountains or even advanced life, the area of land now known as Glacier National Park, was home to a giant inland sea. This shallow sea, the Belt, lay down mud sediments rich with iron. Both the ripple marks and the rust color of this rock - now high in Glacier's alpine - help to demonstrate how long this place has been in the making. Photo: David Restivo, NPS 1.6 billion years ago, long before park, mountains or even advanced life, the area of land now known as Glacier National Park, was home to a giant inland sea. This shallow sea, the Belt, lay down mud sediments rich with iron. Both the ripple marks and the rust color of this rock - now high in Glacier's alpine - help to demonstrate how long this place has been in the making. Photo: David Restivo, NPS | ||||
