Námafjall Hverir (the Namafjall Hot Springs)
This informative plaque maps the smoking, boiling, hissing, and stinking hot springs that gives Reykjahlíð (Smoking Hill) its name. It reads:
NÁMAFJALL HVERIR
(Mine Mountain Hot Springs)
Námafjall is a high temperature geothermal area with fumaroles and mud pots. At a depth of 1000 m, the temperature is above 200C. Along with the steam comes fumarole gas, such as hydrogen sulfide which is responsible for the characteristic hot spring smell in these area. The hot springs produce considerable sulphur deposits. In previous centuries sulphur was mined in Iceland to produce gun powder.
Caution: Unsafe soil and high temperatures (80-100C)! Please walk only on the paths and marked trails.