The Cortex/Mesa Verde KOA in Cortez, Colorado, was the best campground we stayed at (out of 10) on our #9parks12days road trip in June 2016. Not only was the site itself updated, it was the FIRST KOA we stayed at that had usable Wi-Fi - as in video streaming capabilities! When traveling with kids, this is such a HUGE amenity.

This campground has an updated playground, heated (seasonal) swimming pool, a 1-mile walking trail, dog park, and even tepees in addition to cabins for overnight camping. Not to mention, the campground is located a mere 15 minutes from the entrance to Mesa Verde National Park. Other highlights: newer laundry facilities, of which we made use, and awesome mountain and mesa views right from your site.

Don't expect a ton of privacy - sites are very close together. The family next to ours had an outdoor living room set up that pretty much took the entire space between our RVs. However, the grounds were well-kept, and there was plenty of space to remove yourself from other people throughout the facility.