Caldera

Caldera is Spanish for the boiling cauldron. Boaters know it as The Gateway to Hell (Hells Corner Gorge that is). From here to Stateline Falls the whitewater action is nearly constant. Caldera changes quite a bit between low-med and high-med flows. To see where the current is going and which rocks need to be avoided a scout from river left is recommended. The large hole 20 yards into this rapid gets very large at high-medium flows. The rock just below this hole is known as the 'Mushroom Rock' running to the left or right of Mushroom are both standard routes. Caldera is a long class IV rapid and scouting its entire length is difficult and not very practical. Scout just the upper portion since the difficult moves are all before 'Mushroom Rock.'