How is the highest obstacle identified on an approach plate?

• A. A conspicuous arrow pointing
• B. A bold red “H”
• C. A blue circle
• D. A dotted line around the obstacle

Answer: (A)

The highest obstacle on an approach plate is highlighted with a conspicuously placed arrow that points directly to it. This visual cue makes it easy to spot the most dangerous obstruction along the approach path at a glance, which is crucial for maintaining safe obstacle clearance as you fly the procedure. The height of that obstacle is shown nearby so you can compare it to your altitude and ensure you stay well above it throughout the approach.

Other symbols you might see on the plate serve different purposes or indicate other features, and they aren’t used to designate the highest obstacle. The chart legend explains what each symbol means, but the arrow is specifically the quick way a pilot is directed to the top-priority obstacle on the approach.