Here are some images I took while going through Yellowstone Nat'l Park in early June. Unfortunately I didn't do enough research beforehand to figure out how to get backed up far enough away from the Grand Prismatic Spring to get the entire pool in the frame so all I have of it are images of the runoff. As you can see, it was a perfect day for midday pictures - just the right amount of clouds and no haze. One thing I was surprised to see was the small field of flowers appearing to struggle making a stand amidst the minerals and microbes near the Spring. Any C & C are welcomed.
Hayden Valley
Pelican Creek
Runoff from Grand Prismatic Spring
More runoff from GPS
Field of Flowers near GPS
Opal Pool