'Northernmost' definitions:

Definition of 'northernmost'

(from WordNet)
adjective
Situated farthest north; "Alaska is our northernmost state" [syn: northernmost, northmost]

Definition of 'Northernmost'

From: GCIDE
  • Northernmost \North"ern*most`\, a. [Cf. Northmost.] Farthest north. [1913 Webster]