You may also be able to gain insight into device location from the many available ride sharing and transportation applications that have flooded the application stores. While these applications seem to contain a lot of historical data, to include details of past trips that go back in time several years as you scroll through the user interface, locating this data in the application itself is many times difficult.
iOS devices do make one particular database that tracks location information available in an iTunes backup, the database.db file located at:
Private/var/mobile/Containers/Data/Application/com.ubercab.UberClient/Documents/database.db
Even though the locations listed in this file are legitimate, they appear to be associated with search history and not necessarily always indicative of trips the user took.

Investigation of a rooted Android device provided many more files for review, although the results were not much more fruitful than what was recovered from the iTunes backup.

There does seem to be some historical information related to actual rides take located in:
USERDATA/data/com.ubercab/files/base-key-value-store/ShortcutsCache_CACHED_SHORTCUTS_MAP_KEY

User details related to payment information are stored in:
USERDATA/data/com.ubercab/files/base-key-value-store/payments_KEY_PROFILES

Approximate last cached location:
USERDATA/data/com.ubercab/files/base-key-value-store/keyvaluestore-location-cache_CACHED_UBER_LOCATION

Potential historical trip data:
USERDATA/data/com.ubercab/files/presidio-ndk-crash/userlog

Consider investigating Notifications as well as SMS or Email messages that could provide additional insight related to trips and locations if the user has opted to send this data via those messaging platforms.