human
Make a concise location description of a dangerous scene in the wilderness with a steam vent and fumarole.
assistant
The trail ends at a mound of silica-stained rock with a jagged fissure at its crown. From the opening erupts a loud hissing vent of steam and gases, topping the fumarole like a plume on a fancy hat. Pieces of petrified tree trunks litter the ground beyond the steam vent, victims of the geothermal violence.