Volcanoes: Lassen

I visited Lassen Volcanic National Park way back in 1964 (or was it 1963?), when I climbed the peak and the nearby cinder cone: stark, dark, completely covered with volcanic rock.  The peak, at 10,457 feet, is the largest plug dome volcano in the world in the world.  The National Park  is one of the few areas in the world where all four types of volcano can be found—plug dome, shield, cinder cone, and stratovolcano.

I remember it as an otherworldly scene of domes, mud pots, fumaroles, and mudpots.  It last erupted in 1917.

LAssen Peak was the second volcano I climbed (the first was Shasta).

The cinder cone, with the Cinder Cone Trail leading to its summit.  Both pictures are from Wikipedia.