and just like the Grand Canyon, Glacier Park has its layers too. This layer is not one you get to see everywhere in the park. Here is more info about the formation layers of the Park: https://www.nps.gov/parkhistory/online_ ... 3/sec3.htm

Above the lava, about 100 feet of red strata, oxidized argillite , record a brief drop in the level of the Belt Sea. Above that, the maid body of the Shepard, 600 to 1300 feet of yellow stone, caps many of the park's peaks including Mount Cleveland, Glacier's tallest and forms the cliffs around Granite Park.