boiling springs lake

acid activity barren boiling bumpass california cascade desert desolate devastate earth environment environmental eruption fog fumarole fumaroles gas gases geologic geology geothermal harsh hell hike hole hot hydrothermal lake landscape lassen lava mist mud mudpit national natural nature nevada park pit pool pools pot pots science shore shoreline sierra smoke spring springs steam sulfur thermal toxic tree trees usa valley vent vents volcanic volcano warner wasteland water