High Places, elevated spots on which altars were erected for worship in the rude belief that, as they were nearer heaven than the plains and valleys, they were more favourable places for prayer. The practice of worship on these spots, though from the first forbidden, became frequent among the Jews, and was with difficulty abolished, though denounced time after time by the prophets as an affront to Jehovah.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
High Church * High Seas