618---630 feet depends where you look it up... try here http://www.winecountrycabins.com/finger-lakes/seneca.htm
Lake Superior is the deepest and coldest of the Great Lakes. It has a maximum depth of 1,333 feet (406 meters) and can reach temperatures as low as 39 degrees Fahrenheit (4 degrees Celsius) near the surface.
The Great Lakes, from deepest to shallowest, are Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario. Lake Superior is the deepest, with a maximum depth of about 1,333 feet (406 meters), while Lake Ontario is the shallowest, with a maximum depth of approximately 802 feet (244 meters). Each lake plays a vital role in the ecology and economy of the region.
The deepest of the Great Lakes is Lake Superior.deepest pointSuperior=1,333 ft. Michigan=923 ft.Huron=750 ft.Erie =210 ft.Ontario= 802 ft.
The pressure under the ocean is greater than under the Great Lakes because the density of seawater is higher than freshwater. Seawater is also influenced by the weight of the water column above due to the depth of the ocean, leading to higher pressure.
1,332 feet of Lake Superior.
The two largest lakes entirely within the US are Lake Michigan (a Great Lake) and the Great Salt Lake of Utah (which is never deeper than 45 feet). They have the largest surface areas.* The other 4 Great Lakes form the border with Canada. The two largest Great Lakes are Lake Superior and Lake Huron. Hydrologically, Lakes Huron and Michigan are one contiguous body of water, which would be the largest Great Lake by far if considered as one lake.* If the lakes are ranked by volume, Lake Tahoe would be the second largest, at 36 cubic miles, due to the shallow depth of the Great Salt Lake (volume 4.5 cubic miles).
Lake Erie
The state of Wisconsin borders two of the five Great Lakes that naturally separate the United States and Canada. Lake Michigan borders the state's east coast, and Lake Superior borders a fairly small piece of northern Wisconsin, but includes the city of Superior. Lake Superior has a maximum depth of 1,332 feet and Michigan 923 feet.
The lake has an average depth of 14 feet. See the related link for more information.
Caspian Sea Superior Victoria Huron Michigan Caspian Sea (Kazakhstan) - 143,244 sq m in area 3,363 feet in depth Lake Superior (USA-Canada) - 31,700 sq m in area 1,330 feet in depth Lake Vicotria (Africa) - 26,828 sq m in area 270 feet in depth Aral Sea (Russia) - 24,904 sq m in area 220 feet in depth Lake Huron (USA-Canada) 23,000 sq m in area 750 feet in depth Lake Michigan (USA) - 22,300 sq m in area 923 feet in depth
Depth is not a dimension of a cylinder. Also, depth is measured in feet, not sq feet.