The following is part of a series of posts about the trip Wayne and I took to Yellowstone National Park in 2009.
So, before I start talking about Yellowstone, please take the time to ooh and aah over the minor changes I made to my blog's appearance. I had enough time on my hands to sit down and figure out how to change the colors of my links and text to make them easier to see. Aren't you impressed? I don't know why I couldn't figure it out before. I must be extra smart today. I do love my template though and can't imagine a time when I will change that. The greens and browns just go well with the nature photography that is my usual fare here, and though it works okay for other folks' blogs I just can't live with all that white that is on the newer layouts for myself.
|Discharge from Excelsior Geyser makes its way to the Firehole River|
Now let's talk about Yellowstone, land of geysers, mudpots and hot springs. Looking for a pleasant walk? We really enjoyed the boardwalk at Midway Geyser Basin. The half mile trail runs past Turquoise Pool, Grand Prismatic Spring, and alongside the crater of Excelsior Geyser.
|Grand Prismatic Spring|
The color comes from the bacteria in the microbial mats, and it depends on the ratio of chlorophyll to carotenoids and on the temperature of the water. Different bacteria will thrive at different temperatures and the water temperature cools as it reaches the edges.
No swimming in these pools please, temperatures range from 142F at Turquoise Pool to 199F at Excelsior Geyser.
Most folks come for the geysers, but I loved the severity of the landscape, the way the earth steamed and the water simmered. And, of course, the wildlife, but more about that next time.
This is my fifth post about Yellowstone, if you missed the other posts you can click on the Wyoming label below, click this link to get the first Yellowstone post last February, or type Yellowstone in to the "search this blog" box.