A large natural sea cave lies below a sandstone bluff in La Jolla at sunrise with a pink sky, Black's Beach in the distant.
Location: La Jolla, California
Image ID: 20250
Limestone and marble underground formations in Oregon Caves National Monument. Eons of acidified groundwater have slowly etched away at marble, creating the extensive and intricate cave formations in Oregon Caves National Monument.
Location: Oregon Caves National Monument
Image ID: 25861
Limestone and marble underground formations in Oregon Caves National Monument. Eons of acidified groundwater have slowly etched away at marble, creating the extensive and intricate cave formations in Oregon Caves National Monument.
Location: Oregon Caves National Monument
Image ID: 25862
Limestone and marble underground formations, Miller's Chapel grotto in Oregon Caves National Monument. Eons of acidified groundwater have slowly etched away at marble, creating the extensive and intricate cave formations in Oregon Caves National Monument.
Location: Oregon Caves National Monument
Image ID: 25863
Limestone and marble underground formations, Miller's Chapel grotto in Oregon Caves National Monument. Eons of acidified groundwater have slowly etched away at marble, creating the extensive and intricate cave formations in Oregon Caves National Monument.
Location: Oregon Caves National Monument
Image ID: 25864
Paradise Lost formation in Oregon Caves National Monument. Eons of acidified groundwater have slowly etched away at marble, creating the extensive and intricate cave formations in Oregon Caves National Monument.
Location: Oregon Caves National Monument
Image ID: 25865