northmost

from WordNet (r) 3.0 (2006)

northmost
    adj 1: situated farthest north; "Alaska is our northernmost
           state" [syn: {northernmost}, {northmost}]

from The Collaborative International Dictionary of English v.0.48

northmost \north"most`\ (n[^o]rth"m[=o]st`), a. [AS.
   nor[eth]mest. Cf. {Aftermost}.]
   Lying farthest north; northernmost.
   [1913 Webster]

         Northmost part of the coast of Mozambique. --De Foe.
   [1913 Webster]