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The Sentinels of the Sea...
Sentinel dome in Yosemite park
A couple resting in Sentinel Dome
Sentinel dome in Yosemite National Park
Agathla Peak: A Solitary Sentinel
Agathla Peak: A Solitary Sentinel
Watching over the ocean as a Sentinel.
Sentinel Trail to the Tugela Falls in the Drakensberg
Feline sentinel by morning news
The first part of the Sentinel hiking trail
Sentinel Trail to the Tugela Falls in the Drakensberg
Sentinel Trail to the Tugela Falls in the Drakensberg
The Gully on Sentinel Trail to the Tugela Falls
Sunrise on the road to the Sentinel car park
The eco sentinel: young volunteer in warehouse
Panorama of the first part of the Sentinel hiking trail
People are visible on chainladders on the Sentinel hiking trail
Lichens Pass and the Brandwag (sentinel) in Golden Gate
The Brandwag (sentinel) guards the entrance to Golden Gate
Seabird standing in the ocean as a Sentinel for ships and boats at sea.
Trail down from the Brandwag (sentinel) at the hotel side
Sunshine Sentinel: Man in Yellow Hard Hat on Green
Saguaro Sentinels: The Iconic Cacti of Santa Catalina Mountains