outcrop
1. [ verb ] appear on the surface, come to the surface on the ground
Examples:

"Big boulders outcropped"

Related terms: appear
2. [ noun ] (geology) the part of a rock formation that appears above the surface of the surrounding land
Synonyms: rock_outcrop outcropping
Related terms: rock belay outthrust
Similar spelling:   outcry
  outgrow
  outgrowth