Boulders in images
by michaelaye scientist
Some areas, mostly an area called Inca City, show boulders in the images.
It would be cool if people can go through the effort and hashtag them, because we didn't anticipate so many of them to create an extra tool.
They are of relevancy because their thermal impact on the CO2 ice layer enables very early gas eruptions in the southern Martian spring and are therefore quite often directly lying at the source of small thin fans. Small, we believe, because it's so early in spring, that there was not yet much pressure build-up from under-ice sublimations of CO2 ice.