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Some Great Lakes visuals needed
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<blockquote data-quote="Barcode" data-source="post: 1461666" data-attributes="member: 3165"><p>Heya,</p><p></p><p>Not having been to the Great Lakes region much...except driving to Milwaukee for GenCon a few times, I am at a loss on how to visualize the next part of my campaign.</p><p></p><p>The very short version is that it is in the future, several millennia from now, and that things have transpired to explain magic and the loss of technology.</p><p></p><p>I want the Great Lakes to be a larger, more throroughly navigable freshwater sea, (i.e no canals/locks). There is also an ancient plot point whereby several ancient cities were wiped out by powerful mages by essentially flooding Lake Michigan.</p><p></p><p>My thought is to basically dam up the Detroit River (with a colossal, epic, magically created dam), raising the level of Lake St. Clair, Michigan and Huron about 22 ft, making it level with Superior, turning the St. Clair River into a strait, creating some archipelagos where the lakeside is hilly, and who knows what else.</p><p></p><p>Some questions... How hilly are the Michigan peninsulae (upper and lower)? How steep are the shores? The Ontario shoreline? If I raised the level of the lake 20ft, how far inland would the floodwaters go? How wide would the Detroit River get (i.e. how wide would the dam need to be)?</p><p></p><p>In the area around Sault Ste. Marie, what is the nature of that waterway? Narrow and fast? Wide and slow? Gorges? Superior is 601ft above sea level, Huron and Michigan are 579ft, so if I levelled the two, what would this look like? A narrow strait, or would the floodwaters extend much further inland?</p><p></p><p>Taking the same concept further, if I put my colossal dam at the mouth of the Niagara River, I could conceivably raise Lake Erie 31ft. So what would that do to Ohio and Ontario? I remember Ohio's shoreline being pretty flat, so presumably I would widen the lake by several miles. How wide would the Niagara River get near it's source?</p><p></p><p>Thanks for your input...</p><p></p><p>-B-</p></blockquote><p></p>
[QUOTE="Barcode, post: 1461666, member: 3165"] Heya, Not having been to the Great Lakes region much...except driving to Milwaukee for GenCon a few times, I am at a loss on how to visualize the next part of my campaign. The very short version is that it is in the future, several millennia from now, and that things have transpired to explain magic and the loss of technology. I want the Great Lakes to be a larger, more throroughly navigable freshwater sea, (i.e no canals/locks). There is also an ancient plot point whereby several ancient cities were wiped out by powerful mages by essentially flooding Lake Michigan. My thought is to basically dam up the Detroit River (with a colossal, epic, magically created dam), raising the level of Lake St. Clair, Michigan and Huron about 22 ft, making it level with Superior, turning the St. Clair River into a strait, creating some archipelagos where the lakeside is hilly, and who knows what else. Some questions... How hilly are the Michigan peninsulae (upper and lower)? How steep are the shores? The Ontario shoreline? If I raised the level of the lake 20ft, how far inland would the floodwaters go? How wide would the Detroit River get (i.e. how wide would the dam need to be)? In the area around Sault Ste. Marie, what is the nature of that waterway? Narrow and fast? Wide and slow? Gorges? Superior is 601ft above sea level, Huron and Michigan are 579ft, so if I levelled the two, what would this look like? A narrow strait, or would the floodwaters extend much further inland? Taking the same concept further, if I put my colossal dam at the mouth of the Niagara River, I could conceivably raise Lake Erie 31ft. So what would that do to Ohio and Ontario? I remember Ohio's shoreline being pretty flat, so presumably I would widen the lake by several miles. How wide would the Niagara River get near it's source? Thanks for your input... -B- [/QUOTE]
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