Mount Baker's crater lake in 1976 formed due to glacial and snow me...
By Volcano Hazards Program
1905 (approx.)

Detailed Description
Mount Baker's crater lake in 1976 formed due to glacial and snow melt as a result of increased heat from magma beneath the surface. Fumarole on left ejecting gas at a velocity of 268 kph (167 mph).
Sources/Usage
Public Domain.