Dispersed Camping and Noise Map

Anyone who has camped non-dispersed can attest to how annoying a generator, undisciplined minors, or adults for that matter and autos can be while trying to zen outside.  Here's a map to illustrate the issue:  http://www.smithsonianmag.com/travel/national-park-service-map-shows-loudest-quietest-places-us-180954372/?no-ist

Many seasoned full timers habitually disperse camp for very good reason.