Geology and Mineral Resources - Vermont Geological Survey

	Activities of the Survey

	Earth Resources and Energy

	Earth Science Week

	Geology and Human Health

	Geology of Vermont

	Groundwater

	Links, Books, Places to Visit

	Low Level Radioactive Waste

	Natural Hazards- Earthquakes, Landslides, HAZUS

	Photogallery

	Publications & Reports

	Radioactivity

	State Mapping Program

	Stream Geomorphology

	Survey History

	VT Geologic Maps and their Uses

Welcome to the Vermont Geological Survey

Lake Champlain Depth Charts (1870-1879) from the U.S. Coast Survey (see NOAA site for more information or other historical maps/charts )

US Coast Survey, Burlington, VT 1872	US Coast Survey, Lake Champlain, Rouse's Point to Cumberland Head, 1874	US Coast Survey, Lake Champlain, Rouse's Point to Cumberland Head, 1879
US Coast Survey, Lake Champlain, Rouse's Point to Ligonier Point, 1879	US Coast Survey, Lake Champlain, Ligonier Point to Cole's Bay, 1879	US Light House Board Chart, 1870