On a sectional chart, a maximum terrain elevation figure (MEF) is shown in each quadrant as:
Why →
Maximum Elevation Figures (MEF) appear in each 30-minute quadrant on sectional charts as large bold blue numbers. They show the highest terrain or obstacle in that quadrant, rounded up with a safety buffer (typically 100 to 200 feet added). The format is thousands/hundreds (e.g., '2^5' means 2,500 feet MSL).The trap →
MEFs are easy to mistake for airspace floor/ceiling numbers. Size and bold formatting distinguish them.SOURCE → FAA Aeronautical Chart User's GuideCHECKED APR 21ACS II.A.K6EASY