This is a fascinating place, out in the middle of "nowhere" intentionally, since they need to be in a region where there is as little radio frequency interference as possible (the instruments in the radio telescopes that are detecting signals from deep space are so sensitive even the battery in your cell phone or car door electronic key fob will mess up the tracking.) The visitor's center is quite nice with a little cafe for lunch or snacks (nothing fancy) and a dining area from which you can see the huge radio telescopes spread out among the trees and meadows of the park-like installation. You can sign up for a tour and they give you a brief lecture and slide show in their presentation hall and then take you on a bus tour of the site. We did that and then chose to hike on our own around the entire site since it was a nice day. It really is huge -- it is about a 3 mile round trip walk to see all the installations up close. Little kids might be kind of bored but older kids (8 and up) with an interest in science should find it fun. The biggest telescope at the far end of the park is HUGE! We were thrilled when they did a scheduled rotation of it just as we got there on our hike -- a really impressive piece of technology. Price for the tour was modest -- I think it wasonly $6 for an adult.
If you own or manage National Radio Astronomy Observatory, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.