Sulphur Works is one of the sites of Lassen which is right
next to the main road through the park so to get there you'll only have to
park the car and walk for a very short distance. What you'll see is a cloud
of steam. This hydrothermal area is believed to be part of the vent system
that created Mount Temaha. The distinctive smell of rotten egg is due to the
hydrogen sulphite gas.
