Seeing a picture of Bumpass Hell was what made me decide
to come to Lassen in the first place (unfortunately my picture didn't come
out that well, but that's because I followed the instructions and kept to
the path; the earth is hot and steaming around there). Bumpass Hell is the
largest area containing geothermal features in Lassen Volcanic National
Park. It takes its name from an unfortunate gentleman who discovered the
place and lost a leg there by falling into a hot mudpot.
The trail to Bumpass Hell is quite easy. It's 3 miles round trip and it
doesn't change much in elevation. It's closed in the winter due to snow and
even in the summer some patches of snow remain. The active area can be
seen from some distance away. The sulphury smell will also attack before
you reach the boardwalk that takes you close to the thermal area. Keep to
the boardwalk and take some time exploring the steaming fumaroles and
mudpots. The blue color of the springs makes for some beautiful photos.