These resources are brought to you by the Cooperative Extension System and your Local Institution

Geospatial Technology Home

Have a question? Try asking one of our Experts

How do I determine the accuracy of a GIS-produced map?

Last Updated: January 25, 2008

View as web page


The accuracy of a map produced from a GIS is determined by the accuracy of the spatial data used to create that map. The best way to determine the accuracy of the data is to view its metadata. The accuracy of the entire map is the same as the accuracy level of the least accurate spatial data set. If metadata are missing for any of the data sets, then it may be impossible to determine the accuracy of the map.

Browse related Faqs by tag: geospatial technology, accuracy, map accuracy


Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.