Aviation System Standards |
Digital Obstacle FileThe Digital Obstacle File describes all known obstacles of interest to aviation users in the U.S., with limited coverage of the Pacific, the Caribbean, Canada, and Mexico. The obstacles are assigned unique numerical identifiers; accuracy codes, and listed in order by state. Please see the DOF Readme file for additional information. * Note: If ordering through NACO, please provide the FAA Product IDs with your order for faster service.
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