I hate to sound like a broken record (does anyone still know what a broken record is?), but thanks, thanks, and thanks. All of these tips and pointers are great and I really appreciate everyone taking the time to provide the information. And I am definitely going to "House on Fire"--that's the most dramatic "ruin" I've ever seen. Wow.
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Jon -- I spent some time looking at your pictures (very nice) and I love the picture of Lake McDonald in Glacier. Here's my favorite of St. Mary's Lake:
The nice thing about Glacier is that it's pretty hard to take a bad picture!