We went mountain biking here and I think it's the prettiest place in Colorado Springs. There are many trails to choose from and maps on site will show their difficulty levels. The rocks are gorgeous, the trails are in well kept and parking isn't a problem before lunchtime on a weekday. Bring your camera!
Go early on the morning to avoid crowds and school trips. We went at 10am and had the trail we chose pretty much to ourselves. Out-of-Towners should walk, not bike, and take it easy. The elevation changes on the trails and lungs not yet acclimated to the altitude will huff and puff.