A pretty impressive geologic feature. The normal flow rate is 900 cubic feet per second (over 400,000 gallons per minute) through this cool old lava tube that collapsed due to the river flow. It creates a thundering roar and very fast, turbulent water. The chasm is 500 feet long, 25 feet wide, and the river surface is about 45 feet below the rim. With an average temperature of only 44 degrees, the native fish do not grow very large.
Check out the Official Route and Triplog.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.
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