How high is KNDZ field elevation?

• A. 177'
• B. 1770'
• C. 277'
• D. 107'

Answer: (A)

Field elevation is the altitude of the airport’s reference point above mean sea level, and it’s the figure used to set the altimeter so your altitude is correct relative to the field. This elevation is shown on charts as Elevation in feet MSL and represents the airport surface level at the reference point, not the runway length or obstacle height.

For KNDZ, the chart lists the field elevation as 177 feet MSL, so the correct value is 177 feet. This helps you determine how high you are above the airport surface (MSL minus field elevation gives feet AGL near the field) and sets a reliable reference for approaches, departures, and overall flight planning. The other numbers imply different elevations than the charted reference point for KNDZ, so they don’t match the actual field elevation.