Model Rockets.
Not too far to the south of there is a field we have gone to launch rockets and fly RC planes. There are several fields out they way people use for that/
All the rockets I have see launched are the kind you buy at the hobby stores. They may go a thousand feet or so, but not 13,000 feet.
How high do flairs get?
What about homemade rockets? I wonder how high a homemade rocket could go?