charts

Class G airspace — surface up to but not including 700 feet MSL; Class E airspace — 700 feet to 14,500 feet MSL. Class G airspace — surface up to but not including 18,000 feet MSL. Class G airspace — ...

the Notices to Airmen (NOTAM) publication. notes on the border of the chart. the Airport/Facility Directory section of the Chart Supplement.

The aircraft is West. The aircraft is East. The aircraft is South.

  notes on the border of the chart. the Chart Supplement. the Notices to Airmen (NOTAM) publication.

3000 1700 4000

3,000 feet MSL. 3,100 feet MSL. at the surface.

1,300 feet MSL. 1,300 feet AGL. 1,700 feet MSL.