This 2008 image shows a portion of the North Polar layered deposits with lines of very small pits , only about 1 meter in diameter.

Such small pits should be quickly filled in by seasonal ice and dust, so their existence suggests active processes such as faults pulling apart the icy layers.

Written by: Alfred McEwen  (27 February 2017)

This is a stereo pair with PSP_009873_2645 .

More info and image formats at http://hirise.lpl.arizona.edu/PSP_009834_2645

Image: NASA/JPL/University of Arizona