About 300 million decades ago A different oscillating sea protected the world abandoning levels of shale and limestone. Then, about 1,000,000 a long time back, glaciers moved down in the north. The Kaw River about parallels the southernmost idea of the most recent glacier, which included most of North America https://andresqhykb.59bloggers.com/29945181/the-ultimate-guide-to-kaws-moon-rocks-flavors