Voyager uses Gazetteers for Geotagging and Placefinding (in version 1.9.6 and later). There are two types of gazetteers, Custom and Standard.
Custom Gazetteer - A custom gazetteer is based on specific data in the index that you use as a source of location information for other data.
Standard Gazetteer - This is a pre-built gazetteer stored in a separate index (gazetteer), in local or remote Voyager instances. You can find the default Standard Gazetteer at http://gazetteer.voyagersearch.com.
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Return to the search results that include the location
Click Show Detail Page for an individual record
Select Load View Settings > Discovery Debug Information from the Admin Options menu
Look for location information, for example bbox values, in the list of metadata