I agree with most of the information in this thread - mostly what stood out to me that warrants another reminder is:
1. There is a big drop on the South Platte at Florida Ave, approx. 5 bridges after Union Ave put in. This is one of the most memorable of the run and the boat chute is on river left. I went down there last night after work and it has a fast moving tongue into the V of a couple big laterals and a hole. Heads up on that one.
2. Cherry Creek is not boatable. If you like mank, extremely low bridges that are immediately after some of the drops and lots of debris and ill maintained man made drops, go for it. Anyone who ran it, ran it years ago, prior to the installation of the low bridges.
3. After Confluence Park on the Platte, there are several great spots to take out, like City of Cucuverna Park on river left.
Check out this post from AW -
American Whitewater - Federal Agencies to revitalize the South Platte River - Colorado
I guess Ken Salazar is bringing some love to his home state. Sweet.