Yes, you can.Can I launch my drone from a private residence (my friends place, with permission) adjacent to a state park and fly over the state park? While I maintain a line of sight from the private property.
Typically yes, that is the case. FAA controls the airspace. State and local governments control what happens on the ground.The park has "no flying drone signs".
However, there is some conflicting information, if its only prohibited to take-off and land within the state park.
If you can see it, it is within Line of Sight. The use of strobes can assist in that regard. With my Firehouse ARC-V strobes, I can maintain LOS to about 2 km.If allowed, how many feet out would be reasonable for a "line of sight", at say a height of 100 ft.