a-modern-major-general:The cliffs of the Palouse Falls in south-eastern Washington were formed by la
a-modern-major-general:The cliffs of the Palouse Falls in south-eastern Washington were formed by lava flows from Earth’s third-largest eruption, 16 millions years ago. -- source link
#history#prehistory#geography#geology#volcanoes#usa#washington#palouse falls#palouse river