Right now the Playpark in Pueblo, perhaps the nature Center in Pueblo or some sections above Parkdale for you like Trading Post to Lone Pine.
Don't go alone
. Check out the lounge at the Colorado Springs based Pikes Peak Whitewater Club and inquire around there.
Pikes Peak Whitewater Club.
At least this winter at their pool sesssions you can meet some people to run with. I sent you a PM.