Ismeniae Fossae is a region containing irregular valleys on
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...
. It is 287 km across and centered at .
It is located in the
Ismenius Lacus quadrangle
The Ismenius Lacus quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The quadrangle is located in the northwestern portion of Mars’ eastern hemisphere ...
. It is along the dichotomy boundary that is between the old, heavily cratered southern highlands and the low plains of the northern hemisphere. Ismeniae Fossae is to the immediate west of
Moreux crater. The regions of plateaus known as
Deuteronilus Mensae
Deuteronilus Mensae is a region on Mars 937 km across and centered at . It covers 344°–325° West and 40°–48° North. Deuteronilus region lies just to the north of Arabia Terra and is included in the Ismenius Lacus quadrangle. It is ...
and
Protonilus Mensae
Protonilus Mensae is an area of Mars in the Ismenius Lacus quadrangle. It is centered on the coordinates of 43.86° N and 49.4° E. Its western and eastern longitudes are 37° E and 59.7° E. North and south latitudes are 47.06° N and 39.87° ...
are to the northwest and northeast of Ismeniae Fossae.
References
{{Geography of Mars
Ismenius Lacus quadrangle