Gullies Occur

Some articles on gullies, gullies occur:

Terra Sirenum - Martian Gullies
... Sirenum is the location of many martian gullies that may be due to recent flowing water ... Gullies occur on steep slopes, especially on the walls of craters ... Gullies are believed to be relatively young because they have few, if any craters ...
Argyre Quadrangle - Martian Gullies
... Gullies are common in some latitude bands on Mars ... Usually, martian gullies are found on the walls of craters or troughs, but Charitum Montes, a group of mountains, has gullies in some areas (See the image below) ... Gullies occur on steep slopes, especially on the walls of craters ...

Famous quotes containing the word occur:

    A man will be imprisoned in a room with a door that’s unlocked and opens inwards; as long as it does not occur to him to pull rather than push.
    Ludwig Wittgenstein (1889–1951)