(the letter here) I created this video; And posted it to a few drone sub-reddits, shared with friends family on FaceBook, etc. It must have trickled down to someone who crafted up this letter and sent it to me. I took some time to research the actual laws the best I could (it is very sketchy / grey area) and from what I have read, it looks like if I take the drone off and land the drone on public property or outside the "Lake Roosevelt National Recreation Area", I'm not breaking any law. Taken from here; What about state and local laws and regulations? We’re coming close to winding down here, but I’d be remiss not to mention that many states and cities have passed their own laws and regulations to ban or restrict drones. To be clear, state and local governments have no authority over the airspace. Remember this? The federal government “has exclusive sovereignty of airspace of the United States.” All navigable airspace is overseen by the FAA and no other entity. Even in the letter, they don't specify flying over their boundaries, and are very specific to saying, "Launching, landing, or operating from or on lands or waters administered by the NPS within the boundaries of LRNRA is prohibited except as approved in writing by the superintendent." I'm actually working on my pilots license. I think I'll have it in about 20 more hours (almost have student pilot license) so am very safe when flying and understand and follow all the FAA's official rules (below 400, not over people, in line of sight) all of which I did in that video. Just looking for thoughts, or if I have over looked a law that warranted the letter I got.