There is a colourful Fly Geyser in the US
The Fly Geyser is a man-made geothermal geyser in United States' Nevada. The 5-feet high geyser is covered with thermophilic algae, the reason behind its colourful appearance. It was created by accident when an energy company was drilling a well for geothermal energy in 1964. The covering of the well did not hold, and dissolved minerals created the geyser's mound. 