Borealis Planitia

Borealis Planitia /bɒriːˈeɪɪs pləˈnɪʃiə/ is a large plain on Mercury^[1] with a smooth floor, thought to be similar to a lunar mare.^[2] It is centered at 73.4° N, 79.5° W. The name is Latin for Northern Plain.

Borealis Planitia

Part of Borealis Planitia, photographed by MESSENGER
Feature type	Planitia
Location	Borealis quadrangle, Mercury
Coordinates	73.4°N 79.5°W / 73.4; -79.5
Eponym	Latin for "Northern Plain"

Typical Borealis Planitia, north of the crater Monteverdi