Lake Champlain (French: lac Champlain) is a natural, freshwater lake in North America, located mainly within the borders of the United States (states of Vermont and New York) but partially situated across the Canada – United States border in the Canadian province of Quebec.
Lake Champlain is situated in the Champlain Valley between the Green Mountains of Vermont and the Adirondack Mountains of New York, drained northward by the Richelieu River into the St. Lawrence River at Sorel-Tracy, Quebec (northeast of Montreal) and fed by Otter Creek, the Winooski, Missisquoi, and Lamoille Rivers in Vermont, and the Ausable, Chazy, Boquet, and Saranac Rivers in New York. Lake Champlain also receives water from Lake George via the La Chute River.
Lake Champlain is one of a large number of large lakes spread in an arc from Labrador through the northern United States and into the Northwest Territories of Canada. Although it is much smaller than the Great Lakes of Ontario, Erie, Huron, Superior, or Michigan, Lake Champlain is a large body of fresh water. Approximately 1130 km² (435 square miles) in area, the lake is roughly 180 km (110 miles) long, and 19 km (12 miles) across at its widest point. The maximum depth is approximately 400 feet. The lake varies seasonally from about 95 to 100 feet above mean sea level.
The Chazy Reef, which has been called the oldest reef in the world, is huge, but most easily studied on Isle La Motte, a Vermont island on Lake Champlain. However, there are two even older reefs on the island, which are the subject of study by scientists.
The oldest reefs are around "The Head" of the south end of the island, slightly younger reefs are found at the Fisk Quarry and the youngest (the famous coral reefs) are located in fields to the north. Together, these three sites provide a unique narrative of events which took place over 450 million years ago in ocean in the Southern Hemisphere, long before the emergence of Lake Champlain - 20 thousand years ago.
The lake was named for the French explorer Samuel de Champlain, who encountered it in 1609. While the ports of Burlington, Vermont, Port Henry, New York, and Plattsburgh, New York are little used nowadays except by small craft, ferries and lake cruise ships, they had substantial commercial and military importance in the 18th and 19th century.
In colonial times, Lake Champlain provided an easily traversed water (or, in winter, ice) passage between the Saint Lawrence and the Hudson Valleys. Boats and sledges were usually preferable to the unpaved and frequently mud-bound roads of the time. The northern tip of the lake at Saint-Jean-sur-Richelieu, Quebec (St. John in colonial times) is a short distance from Montreal. The southern tip at Whitehall (Skenesborough in colonial times) is a short distance from Saratoga, Glens Falls, and Albany, New York.
Forts at Ticonderoga and Crown Point (Fort St. Frederic) controlled passage of the lake in colonial times. Important battles were fought at Ticonderoga in 1758 and 1775. Following a frenetic shipbuilding race through the Spring and Summer of 1776 by the British at the north end of the lake and the Americans at the south end, a significant naval engagement was fought on October 11 at the Battle of Valcour Island, which saw the destruction of the first US Navy vessel to carry the name Enterprise. While the battle was a tactical defeat for the Americans and the small fleet led by Benedict Arnold was almost entirely destroyed, it was a strategic victory. The British invasion was delayed long enough so that the approach of Winter prevented the fall of these forts until the following year, allowing the Continental Army to grow stronger and enabling the later victory at Saratoga.
The Battle of Lake Champlain, also known as the Battle of Plattsburgh, fought on September 11, 1814, ended the final invasion of the northern states during the War of 1812. Fought just prior to the signing of the Treaty of Ghent, the American victory denied the British any leverage to demand exclusive control over the Great Lakes and any territorial gains against the New England states.
Three US Naval ships have been named after this battle including the USS Lake Champlain (CV-39), the USS Lake Champain (CG-57), and a cargo ship used during World War I.
Following the War of 1812, construction was begun on "Fort Blunder," an unnamed fortification built by the Americans at the northernmost end of Lake Champlain to protect against any further attacks from British Canada. Its nickname came from a surveying error: the initial phase of construction on the fort turned out to be taking place on a point three quarters of a mile north of the Canadian border. Once this error was spotted, construction was abandoned and many of the materials used in the aborted fort were scavenged by locals for use in their own homes and public buildings. The signing of the Webster-Ashburton Treaty in 1842 later adjusted the U.S. boundary northward to include the strategically important site of "Fort Blunder." Following this in 1844, work was commenced once again, replacing the remains of the 1812 era fort with a massive new 3rd system masonary fortification known as Fort Montgomery, portions of which still remain today.
In the early 19th century, the construction of the Champlain Canal connected Lake Champlain to the Hudson River system, allowing north-south commerce by water from New York City to Montreal and Atlantic Canada.
In 1909, 65,000 people celebrated the 300th anniversary of the discovery of the lake. Attending dignitaries included President William Howard Taft, along with representatives from France, Canada and the United Kingdom.
Lake Champlain briefly became the nation's sixth Great Lake on March 6, 1998, when President Clinton signed Senate Bill 927. This bill, which reauthorized the National Sea Grant Program, contained a line declaring Lake Champlain to be a Great Lake. Not coincidentally, this status allows neighboring states to apply for additional federal research and education funds allocated to these national resources. Following a small uproar, the Great Lake status was rescinded on March 24 (although Vermont universities continue to receive funds to monitor and study the lake).
One of the more enduring mysteries surrounding Lake Champlain is the legend of Champ. Reminiscent of the Loch Ness monster, Ogopogo and other phenomena of cryptozoology, Champ is purportedly a giant aquatic animal that makes the lake its home. Sightings have been sporadic over time. Regardless, locals and tourists have developed something of a fondness for the creature and its legend and representations of Champ can now be found on tee shirts, coffee mugs, and many other tourist souvenirs. The Vermont Lake Monsters, a minor-league baseball team, have a cartoonish version of Champ as their mascot.
A pollution prevention, control, and restoration plan for Lake Champlain was first endorsed in October 1996 by the governors of New York and Vermont and the regional administrators of the EPA (United States Environmental Protection Agency). In April 2003, the plan was updated and Quebec signed onto it. The plan is being implemented by the Lake Champlain Basin Program and its partners at the state, provincial, federal and local level. It is renowned as a model for interstate and international cooperation. It primary goals are to reduce phosphorus inputs to Lake Champlain; reduce toxic contamination; minimize the risks to humans from water-related health hazards; and control the introduction, spread, and impact of nonnative nuisance species in order to preserve the integrity of the Lake Champlain ecosystem.
Agricultural and urban runoff from the watershed or drainage basin is the primary source of excess phosphorus which exacerbates algae blooms in Lake Champlain. The most problematic blooms have been cyanobacteria, commonly called blue-green algae, in the northeastern part of the Lake, primarily Missisquoi Bay.
In order to reduce phosphorus inputs to this part of the Lake, Vermont and Quebec agreed to reduce their inputs by 60% and 40%, respectively by an agreement signed in 2002. While agricultural sources (manure and fertilizers) are the primary sources of phosphorus (about 70%) in the Missisquoi basin, runoff from developed land and suburbs is estimated to contribute about 46% of the phosphorus runoff basin-wide to Lake Champlain and agricultural lands contributed about 38%.
In 2008, the EPA expressed concerns to the State of Vermont that the Lake's cleanup was not progressing fast enough to meet the original cleanup goal of 2016. The State, however, cites its Clean and Clear Action Plan as a model that will see positive results for Lake Champlain.
Although there are pollution issues, Lake Champlain is safe for swimming, fishing, and boating, and it is considered a world-class fishery for salmonid species (Lake trout and Atlantic salmon) and bass. About 81 fish species live in the Lake and more than 300 bird species rely on it for habitat and as a migration route.
By 2008 there were six institutions monitoring lake water health: 1) In 2002 the Conservation Law Foundation appointed a "lakekeeper" who criticizes the state's pollution controls, 2) Friends of Missisquoi Bay was formed in 2003, 3) In 2007 the Vermont Natural Resources Council appoints a "Lake czar" who criticize weakness in the state's pollution control, 4) Vermont Water Resources Board hired a water quality expert in 2008 to write water quality standards and create wetland protection rules, 5) Clean and Clear, an agency of the Vermont state government established in 2004 and 6) the Nature Conservancy which focuses on biodiversity and ecosystem health.
Biologists have been trying to control lampreys in the lake since 1985 or earlier. Lampreys are native to the area but expanded until they were wounding nearly all Lake trout in 2006 and 70-80% of salmon. This had been reduced by pesticides in 2008 so that 35% of salmon were affected and 31% of lake trout. The goal was 15% of salmon and 25% of lake trout.
Through history there were four significant railroad crossings over the lake. Currently, only one such crossing remains.
The Alburgh Peninsula (also known as the Alburgh Tongue), extending south from the Quebec shore of the lake into Vermont, shares with Point Roberts, Washington, and the Northwest Angle in Minnesota as well as Province Point (see below) the distinction of being reachable by land from the rest of its state only via Canada. However, unlike the other three cases, this is no longer of practical significance since highway bridges across the lake do provide access to the peninsula within the United States (from three directions, in fact). A few kilometres to the north-east of the town of East Alburgh, Vermont, however, the southernmost tip of a small promontory, Province Point, is cut through by the US-Canadian border.
Lake Champlain can be crossed by road at only two points, near the very far southern and northern reaches of the lake. In the south, it is crossed by road at only one southerly point, the Champlain Bridge, connecting Chimney Point in Vermont with Crown Point, New York.
To the north, US 2 runs from Rouses Point, New York to Grand Isle County, Vermont in the town of Alburgh, before continuing south along a chain of islands towards Burlington. To the east, Vermont Route 78 runs from an intersection with US 2 in Alburgh through East Alburgh to Swanton. The US 2-VT 78 route technically runs from the New York mainland to an extension of the mainland between two arms of the lake and then to the Vermont mainland, but it provides a rather direct route across the two main arms of the northern part of the lake.
North of Ticonderoga, New York, the lake widens appreciably; ferry service is provided by the Lake Champlain Transportation Company at:
The most southerly crossing is the Fort Ticonderoga Ferry, connecting Ticonderoga, New York with Shoreham, Vermont just north of the historic fort.
The Swanton, VT, to East Alburg, Vermont, rail trestle.
Lake Champlain has been connected to the Erie Canal via the Champlain Canal since the canal's official opening 1823-09-10, the same day as the opening of the Erie Canal from Rochester on Lake Ontario to Albany. It connects to the St. Lawrence River via the Richelieu River, with the Chambly Canal bypassing rapids on the river since 1843. Together with these waterways the lake is part of the Lakes to Locks Passage.
Burlington, Vermont (pop. 38,889, 2000 Census) is by far the largest city on the lake, having a larger population than the 2nd and 3rd most populated cities (Plattsburgh, New York, and Colchester, Vermont, respectively) combined.
Lake Champlain contains roughly 80 islands, three of which comprise four entire Vermont towns (most of Grand Isle County). The largest islands:
There are many large parks in the Lake Champlain region of both Vermont and New York. Two notable ones on the New York side of the lake is Point Au Roche State Park, which features many hiking and cross country skiing trails. A popular public beach is also located on park grounds. The Cumberland Bay State Park is located on Cumberland Head, featuring a campground, city beach, and sports fields.