Built off the open source project Osquery
Description: Show mounted file systems
What The Data Shows: All mounted drives per endpoint
SQL:
SELECT device,path FROM mounts;
never-displayed
I'm not seeing a table by the name of 'mounts' in the current osquery schema (confer\blades\livequery\osqueryi.exe > .tables)
The mounts table is only available for Linux and Mac. For Windows you would look at logical_drives.