Curiosity used her Mastcam-34 camera to take this three-image panorama of a gap between two headlands to the west of her position on sol 519.
Some related images:
NASA / JPL / MSSS / Emily Lakdawalla
Mastcam-100 view of Dingo Gap, sol 518
Curiosity viewed a gap between two headlands to the west on sol 518. This view has been contrast-enhanced to bring out details in the foreground, washing out the view of the mountainous crater rim in the background.
NASA / JPL / UA / Emily Lakdawalla
Location map for Curiosity's sol 518-521 views of Dingo Gap
The base map is a view of Curiosity taken on sol 479 from HiRISE on Mars Reconnaissance Orbiter. Subsequent sol locations are based on maps by Phil Stooke.
NASA / JPL / Damia Bouic
Navcam panorama, sol 519
The break between two highlands near the center of this panorama is called "Dingo Gap."