Class II+–III Rapid · Cataract Canyon
Rapid 11
Rapid 11 is an unnamed upper Cataract rapid immediately above Rapid 12. The two rapids are separated by only 0.1 mile and effectively run together at any meaningful flow. Class III- at moderate flows. Runs into Rapid 12 with only 0.1 mile between them — effectively a single feature at any meaningful flow. Marks the end of the upper rapid sequence before Mile Long begins at Rapid 13 (Range Canyon).