Mapping

Web map zoom levels updated

By Aileen Buckley, Research Cartographer

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Quite some time ago, I wrote a blog post about the zoom levels used for web maps. Since these have been expanded to include even larger scales, I am updating them here. There are now 23 levels that range from a global scale (zoom level 0 at about 1:591,000,000) to a local scale (zoom level 23 at about 1:70).

I don’t have time right now to update all of the info in the original post, but you should be aware that a lot of it needs to be updated! In the meantime, at least this info is now up to date! Hope this helps those of you who need this!

Scale is the RF 1:XX 

Levels of Detail: 24

About the author

Dr. Aileen Buckley has been making maps since she was an undergraduate student. She has a Bachelors in Geography and Spanish from Valparaiso University, a Masters in Geography from Indiana University, and a Ph.D. in Geography from Oregon State University. She is a senior product engineer on the Living Atlas team, and her work focuses on determining and sharing best practices for mapping and analysis with modern GIS. She publishes and presents world-wide on many aspects of mapping and GIS. She is a co-author of Map Use: Reading, Analysis, Interpretation, and she is a co-editor for the Atlas of Oregon. Aileen is a former president of CaGIS (the U.S. cartographic association) and is actively involved with the International Cartographic Association in which she is the lead delegate for the United States.

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