Marineland near Niagra Falls has the Dragon Muntain coaster. This coaster is really bizarre and there is no wait. You enter through a giant dragon mouth. Also, the have a killer whale and some other attractions.
Also Paramount's Canada Wonderland is near there. They have a version of the grizzly and other rides. I've never been to Wonderland so I can;t tell you that much,
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www.geocities.com/coasting_ohio for Real/Defunct/mini coasters and parks