What is the required obstacle clearance when operating in designated mountainous areas within 100 NM of a facility?

When operating in designated mountainous areas, pilots must adhere to specific obstacle clearance requirements to ensure safety and avoid terrain. The correct required obstacle clearance is 2,000 feet, which is standard practice in these regions. This requirement is in place to account for the increased risk of encountering obstacles such as high terrain, which can pose significant hazards to flight operations.

The 2,000 feet clearance allows for a safety buffer, providing pilots an adequate margin to navigate safely, especially in the event of unexpected turbulence or deviations from the intended flight path. This requirement reflects the guidelines established by aviation authorities to mitigate risks associated with mountainous terrain, reinforcing the importance of maintaining heightened awareness and adherence to altitude regulations when operating near such areas.

Other choices suggest significantly higher or lower minimums that do not align with established safety standards for mountainous operations, thereby potentially increasing the risk of collision with terrain.