<Li> Mile 117.2 - Elves Chasm - A popular side canyon with a small clear - flowing stream with waterfalls and multiple pools . </Li> <Li> Mile 119.3 - 119 Mile Rapid (2) </Li> <Li> Mile 120.6 - Blacktail Rapid (3) </Li> <Li> Mile 122.2 - Mile 122 Rapid (4) </Li>

How many rapids are there in the grand canyon