• aixm.aero
• amxm.aero
• https://www.eurocontrol.int/service/aerodrome-mapping
• https://reference.swim.aero

5.3.1.1 Digital data shall be in the form of the following data sets:
a) AIP data set;
b) terrain data sets;
c) obstacle data sets;
d) aerodrome mapping data sets; and
e) instrument flight procedure data sets.
Note.— Detailed specifications concerning the content of the digital data sets are contained in the PANS-AIM (Doc 10066).