Starfleet Planetary Geosciences Division
The Starfleet Planetary Geosciences Division was a subdivision of the sciences division within Starfleet. This agency was tasked with studying planetary geology. () 

In 2364, on stardate 41607.9, this division, under Vice Admiral Maxwell Headroom, ordered the  to the Gamma Argus system for a cultural survey and, possible, first contact event with the inhabitants of Gamma Argus II. (, okudagram)

On board the , the planetary geosciences division laboratory was located in Room 0513, on Deck 10. In 2365, this lab was the headquarters of a planetary mineral survey led by Acting Ensign Wesley Crusher. He was tasked with solving the mystery of the geological instability of the Selcundi Drema sector planets. ()

Lt. Commander  and Lieutenants  and  served on board the  in the planetary geosciences division. ()

Federation Starfleet agencies
Geoscience