
A geothermal, steam-rimmed alpine lake in Lassen Volcanic National Park—photograph boiling vents, drifting steam, mineral-streaked shorelines and mirrored reflections. Best at dawn or cold mornings when steam is thickest; calm days give cleaner reflections. Park entrance fee/permit required; seasonal access and limited parking, stay on trails for safety and preservation.

A geothermal, steam-rimmed alpine lake in Lassen Volcanic National Park—photograph boiling vents, drifting steam, mineral-streaked shorelines and mirrored reflections. Best at dawn or cold mornings when steam is thickest; calm days give cleaner reflections. Park entrance fee/permit required; seasonal access and limited parking, stay on trails for safety and preservation.