Chataqua Park- Boulder
Location: Right smack dab in the middle of Boulder, which is about an hour from Denver (depending on traffic). There is a free shuttle you can take into the park, and lots of parking in the shuttle lot.
Elevation/distance: This is completely determined by which hike you choose to do. I would recommend going to the visitors center and talk to them about what type of hike you are looking for. They will provide a map and lots of good recommendations based on what you want.
Description: The trail we chose was Meadow to Saddle Rock to Amphitheater, and I would guess it was only a couple miles in length. We actually didn't finish the whole thing because a storm started rolling in. It was beautiful, with a full view of the flatirons, and not strenuous, so perfect if you are looking to get a small, quick, hike in. I'm going to be honest, it was one of my least favorite hikes that we've done because it was so crowded. However, we did go on a weekend in the summer, which I'm sure skyrocketed attendance.
Who I would recommend it to: This is a great, short, hike for anyone who wants to explore Boulder's nature. It doesn't have much climb to it, but you are still surrounded by the flatirons. This is the perfect place to explore if you want a dose of Boulder without too high of intensity.