Identifying locations of old photographs

[melannen]

We've been going through a bunch of old, unlabeled photos taken by my grandparents, and I ended up with a pile that showed locations that ought to be identifiable, but that I can't figure out by myself, or with the help of google/flickr search. So I thought I'd see if anyone in this community recognized any of them. (Also, if you know of any other communities that do this sort of thing, please, let me know!)

These were all taken sometime around the late 1950s/1960s/late 1970s, probably at tourist destinations in the United States and Canada, east of the Mississippi. Identifiable places taken around the same time on the same camera included Niagara Falls, Harpers Ferry WVA, and Cherokee Dam in Tennessee.

( 21 old photographs behind cut )

...if there's any luck with these, I have more. :P