Yet, early in the second century C.E., the Greek geographer Ptolemy had suggested the existence of these mountains, calling them Lunae Montes — Mountains of the Moon.
Ometi esitas ka Kreeka geograaf Ptolemaios teise sajandi alguses oma arvamuse nende mägede olemasolu kohta, pannes neile nimeks Lunae Montes ehk Kuumäed.