1. The lighthouse, built in 1868, was a navigational aid until about 1900. 2. The Canadian Coast Guard maintains a lighthouse as a navigational aid beacon. 3. Other rooms show lighthouse technology, history of navigational aids , and historical photos. 4. It's meant as a rough navigational aid rather than an actual map. 5. Drivers carry global positioning devices as navigational aids during the seven-hour journey. 6. Fish aggregating devices and navigational aids were located at various strategic points. 7. They deliver weather images, monitor ground resources, provide telecommunications and navigational aid . 8. Of these 1, 771 navigational aids , only 160 stations had resident keepers. 9. Charts will show lighthouses, lateral buoy, cardinal marks and other navigational aids . 10. Contemporary navigational aids have simplified the problem of determining course to steer.
Mobile