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The best part about this new dataset is that we’ve been able to add a lot of new, detailed information to Google Maps – information that helps people better explore and get around the real world. For example, college students will be pleased to see maps of many campuses; and cyclists will now find many more trails and paths to explore. Soon we even plan on providing you with biking directions to take advantage of this new data.
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https://google-latlong.blogspot.com/2009/10/your-world-your-map.htmloldId.20091015074756859
Biking in Baltimore