I think a better solution would be a permit process allowing for only so many permits per area of the park, maybe with some areas off limits, only on select days. It could be made very restrictive—such as one day a month, which could be posted for all to see on their web page and at the park entrances. Also, in the event of a crash, if the users don’t retrieve, then they are billed the full amount of retrieval, not matter how much it costs. Decibel levels could be set, plus all sorts of other restrictions.
When I think of some of the other stuff that goes on in the parks, it seems to me a saner drone policy is called for—neither completely open or completely closed.
The very best thing to do in the national parks, btw, would be to close all the roads…..bike, foot, horse, mule, llama, and electric bus/trolley/tram travel only. I’ve been to more than a dozen, and motorized vehicles are by far the most deleterious and obnoxious things in the parks (besides humans, that is….)
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.