Roughly 350 years ago, one of the Chaos Crags domes collapsed to produce the Chaos Jumbles, an area where three enormous rockfalls in rapid succession transformed the local area and traveled as far as down the dome's slopes. The cause remains uncertain, but might have been an earthquake. The largest rockslide moved up nearby Table Mountain, then deflected and moved west. The rockslide moved at about , partly moving on a cushion of compressed air, which lowered friction. The formation of the Jumbles covered with volcanic blocks, causing the formation of Manzanita Lake by damming Manzanita Creek. The rockfall impeded soil development and tree growth in the Chaos Jumbles area, which has been slower than in the Devastated Area near Lassen Peak.