Full disclosure: I too love Yellowstone, but I've only been there once, and it was for two days, rather than two weeks, and that was at
the tail end of a two-month road trip to Alaska and back, when I was already at full maximum sensory overload. I remember everything I saw, and I have pictures of all of it--but as much as I would have loved to, I didn't do a bit of rambling "off the beaten path."
In short, there's no sense pretending that I recognize any of these extraordinary natural wonders based on my own experience. I had to rely, once again, on Google, and this is what I've figured out so far:
#1: The only thing I saw personally that was that color was the Crested Pool. This pool doesn't have a crest, so perhaps it's the Sapphire Pool?
#2: This one was easy because it's quite distinctive, and (sorry, Mark!), it's called Fairy Falls, located near the Midway Geyser Basin.
#3: No luck with this one, because I don't know what I'm looking at. Is this a really big thermal pool, or a river bank?
#4: This is a cone geyser, and every one of them is unique. I lined up all the mug shots, and yours would appear to be the Lone Star Geyser. Awesome picture of the rainbow in the mist!
#5: This is amazing! How many thermal pools have geysers erupting right out of them? Actually, there's just one like that, and it's called the Imperial Geyser, near Fairy Falls.
#6: I had no idea what to call this thing. It looks like a hot tub, though it would probably be more appropriate for flash-boiling lobsters. In any case, I couldn't find any thermal pools quite like this one, so I'm guessing this might be your ringer (if it's not #3). No idea on the location.
Rick