steam raising up to heavy dark clouds, hverir area, iceland

bad boil clouds contrast contrasty cracked crater crust crystals dangerous dark detail dramatic drought dry electricity evening field fumarole gas geology geothermal ground heavy hole hot hverir iceland krafla landscape minerals mud mudpot multicolored myvatn namafjall namaskard nature power sky smell soil solfatare spring steam stinking sulfur texture thermal toxic vivid volcanic