Jay Honeck wrote:
It's
very sad, IMHO, as many thousands of people have had their Grand
Canyon experience drastically diminished so that a far smaller number
of people can quietly hike into it.

So what would the odds be of being caught if you just flew the canyon
like you were entitled to, then disappeared into the canyons in Utah?
An older airplane, or an experimental with the small numbers would be
pretty much impossible to read the tail number even with binoculars.
tom