Centuries Ago, a Hidden Catastrophe Shaped One of America's Most Dangerous Volcanoes That Still Matters Today

Mount Rainier remains one of America's most iconic mountains, attracting hikers, climbers and nature lovers from around the world. Yet its magnificent appearance hides a dynamic geological system that continues to evolve beneath its icy slopes. The discovery that a devastating mudflow swept down the mountain during the summer of 1507 reminds us that even seemingly quiet volcanoes can produce catastrophic events without warning.

Raccontata daeconomictimes.indiatimes.com