Can't fly in Interstate Park also the Saint Croix River corridor is classified a No Fly Zone on the maps, but I have heard of people flying there, so not sure if monitored closely. My neighbor is a SCF policeman and knew of someone flying over the river. Also a couple of grass field airports around Taylors Falls and north of Saint Croix Falls, but haven't seen much airplane action there. Hospital downtown gets a fair about of hilocoptor traffic so need to watch out for that. Lots of maple trees and oak trees along the gandy dancer trail north of Highway 8 for a few miles.
Whatever you do, do it safe and don't rune it for those of us that live and fly here.
Which map are you referring to? Please see following three references.
1) FAA Official online map really doesn't show much but this map does include other NFZs that the FAA has worked with NPS on such as Statue of Liberty and Mount Rushmore etc.
2) DJI NFZ Map - Nothing except surrounding airports to notify.
3) KnowBeforeYouFly.com - This one does have a NFZ over the St. Croix..... but notice it is the upper part which is the part which is managed by the Federal Government. (********This site fails to include Walker Field which is near Afton).
After doing some research on it... the bottom part of the St. Croix is managed by the states and I would assume that is just the actual river itself.
My question is this... If you launch from say Hudson and flew over the St. Croix that airspace is technically the FAAs national airspace so the whole restriction on state parks is that you can't launch/land the drone or operate (the RC) from within their boundaries.
Flying over the St. Croix near Hudson should be fine as long as you give notification to the airports and don't land in the river.
Also reference the FAA official mobile app B4UFLY which has no flight restrictions about hudson except for the airport within 5 miles.
The last screen shot shows "additional restrictions" and for all the categories there is nothing there.
(Side Note: I've talked to the airport manager of Walker Field) and they are totally cool with it as long as you provide the information on your flights etc and even allow texting in the information.
- Please further disscusion on this. Also note I was referring to the part of the St. Croix near Hudson. NOT St. Croix Falls.