Refer to the current Denver sectional excerpt near the Mt Dora West High and Low MOA. A large bold "77" is printed in this quadrangle. What is the highest known terrain or obstruction height this figure accounts for?

Why: This is the quadrangle's Maximum Elevation Figure (MEF). Reading it the same way as the chart's own worked example ("12,500 feet" printed as "12" with a smaller raised "5"), "77" — a "7" with a smaller raised "7" — means the highest known terrain or obstruction in this quadrangle does not exceed 7,700 feet MSL.

• Misreads the MEF's thousands-and-hundreds format as a flat number in thousands — "77" means 7,700 (7 thousand, 7 hundred), not 77,000.
• The chart's own MEF note specifies the figure is in feet above mean sea level, not feet AGL — MEFs are a fixed MSL ceiling for the quadrangle's known hazards, not a height above the ground directly below any one point.