Saturday, March 28, 2015
Echinus Geyser is named for the hardly visible spiny formations that grow around the edge of this hot spring. In the image, they are not visible. This pool is highly acidic, almost as acidic as vinegar. It now erupts only rarely. Visiting Yellowstone National Park is extremely interesting, but unless you have the time and patience to sit for a long period of time, there are many of the geysers you will not see erupting. We happened to be there during a very active time and saw many more than I had ever seen before, but not Echinus.