The Collaborative International Dictionary of English v.0.48:

Table-land \Ta"ble-land`\, n.
   A broad, level, elevated area of land; a plateau.
   [1913 Webster]

         The toppling crags of Duty scaled,
         Are close upon the shining table-lands
         To which our God himself is moon and sun. --Tennyson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tableland
    n 1: a relatively flat highland [syn: tableland, plateau]