St. Michael's Mount, an islet, forming a precipitous granite mass, in Mount's Bay, Cornwall, connected with the mainland by a low causeway passable only at low tides; a fine old castle crowns its rocky height, and a small fishing village lies sheltered on the northern side.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
St. Michael's * St. Michel, Mont