A "rock outcrop" refers to a portion of solid rock that is exposed and visible above the ground surface. It could be a small or large formation of rocks sticking out from the earth. Full definition
Look for a small group of ruins in the Air Combat Academy and identify the large rock outcrop. (gamecmd.com)
But in late 2005, when the rover was still mobile, it had investigated a group of rock outcrops in a region of Gusev Crater known as the Columbia Hills. (scientificamerican.com)
Approximately 45 km off the Andaman coast, to the south east of the Surin Islands, this site somewhat resembles the form of a horse - shoe with a central limestone pinnacle and several smaller rock outcrops on either side. (liveaboard.com)