Used in my observing logs to refer to items associated with the Moon.
<lunar>Descriptive text goes here</lunar>
Other mountain ranges that stood out were <lunar>Montes Spitzbergen</lunar> (which could be seen just north of <lunar>Archimedes</lunar> and more or less on the terminator) and <lunar>Montes Archimedes</lunar> (which was also more or less on the terminator, south of Archimedes).