Pipeline Meadows Group Number 3 (PMG-3) Geyser is located across the firehole river from the lodge cabins in the Upper Geyser Basin of Yellowstone. In June of 2003 PMG-3 was almost perpetual but I have seen it totally quiet in 2002.
PMG-3 Geyser June 2003:
PMG-3 movie (1.5 Mb, 15 sec, sound)
Image copyright 2003, Michael Frazier. All rights reserved.