Lake champlain has 2 different meanings across 2 categories:
a lake in northeastern New York, northwestern Vermont and southern Quebec; site of many battles in the French and Indian War and in the American Revolution and in the War of 1812
A north-south running lake surrounded by the Champlain Valley, in upstate New York State, Vermont and southern Quebec, spanning the United States and Canada, mostly lying within the U.S.; separating the Adirondacks from the Green Mountains and Appalachians.