What is the minimum distance that must be maintained from the ground when flying over non-populous areas to avoid hazards?

The minimum distance that must be maintained from the ground when flying over non-populous areas is 500 feet. This regulation is in place to ensure the safety of both the aircraft and people or property on the ground. Flying at this altitude allows pilots to avoid various hazards such as trees, power lines, and other obstacles that may not be apparent or visible, especially in less populated regions where emergency landing options are limited. Maintaining this minimum altitude also helps to reduce noise for those on the ground, as lower flying can disturb wildlife and residents. This standard is crucial for maintaining operational safety and is outlined in the regulations governing helicopter operations.