Utah has relative few restrictions on seaplane operations but keep in mind that most of the state is at a relative high elevation, and in the summer, the density altitude can be above 8,000 feet. Therefore excess horsepower and good pilot operating skills are required. The lowest elevation in the state is in the southwest corner but even that is around 2,500 feet, with a summer density altitude of more than 5,000 feet.
The Great Salt Lake is as indicated in it’s title, salt water and corrosion should be a concern for those doing any operations there. There are at least two freshwater lakes in the state available for seaplane operations. Check the Water Landing Directory for details.
Keeping the density altitude in mind, seaplane flights can be a very enjoyable form of recreation in Utah.