Huron Lake
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Great Lakes Cruises - Passing Through the Soo Locks
These locks join Lakes Superior and Huron by way of the St. Mary's river which naturally connects the two lakes.
There is a 21 foot difference in height between the two lakes and because of a stretch of rapids, the river has never been navigable even by canoes. The first lock was originally constructed in 1797 on the Canadian side of the St. Mary's River to allow small vessels to pass from lake to lake without the need to portage around the rapids. That lock was destroyed in the war of 1812. The United States built a lock of its own in 1855.
Once the economic value of the Soo Locks was discovered, they were rebuilt to allow much larger ships to pass. Today, ships of 1000 feet can pass through these world renowned locks these are ships so large that they cannot ever leave the Great Lakes because the locks located in the Welland Canal, which a ship would have to pass to reach the ocean, are only capable of handling ships roughly 3/4s the size of those at the Soo.
Great Lakes cruise ships, passing from Lake Huron into Lake Superior must go through the Soo Locks as there is no other connection between the two lakes. Ships are raised 21 feet in the locks when they move from Huron to Superior and dropped 21 feet on their way back.
Besides Great Lakes cruise ships, the locks pass cargo vessels that typically carry iron ore (taconite pellets), coal, cement, limestone salt, grain, lumber or sand. A number of other vessels also use the locks right down to small passenger craft. The locks pass 5000 or more ships annually and operate most of the year closing for maintenance for a couple of months in the late winter or if the weather is particularly fierce.
William G. Oatiz is a lifelong resident of Michigan and an expert on Great Lakes cruises and vacations. Great Lakes cruises offer an opportunity unrivaled by any other other cruise tour. Sail the freshwater seas that lie between the U.S. and Canada. Enjoy a vacation unlike any other. For more information, please visit the blog at Great Lakes cruises
http://www.greatlakescruiseguide.com
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