Entire week in Reds Meadow July 17-25 coming right up...
FF, did you notice the remnants of a cabin at the base of the Postpile? It's kind of hiding behind a small lump of columnar basalt toward the footbridge. All that's left is part of the fireplace. There are picnic tables along the MFSJ river there.
Plans at one time were to blow up the Postpile and put in a reservoir. I think Muir was personally involved in stopping that one.
You're guaranteed a rainbow at Rainbow Fall if the sun is out. Like the Postpile, wait till after Noon for a good photo.
Most people take photos from the North end as they first see the postpile. Here's one from the south side. Tip: also hike the John Muir Trail up on the cliff opposite the postpile. I have to look that one up, it's a spectacular view. I'll find it for you tonight...I got a foot out the door...