Saguaro Sentinels: The Iconic Cacti of Santa Catalina Mountains
Brandwag (sentinel), a sandstone cliff during sunset at Golden Gate
A young woman in Sentinel Dome looking at Upper Yosemite Fall
A young woman in Sentinel Dome looking at Upper Yosemite Fall
Brandwag (sentinel), a sandstone cliff during sunset at Golden Gate
An observant meerkat stands upright, ever the watchful sentinel in its natural habitat.
View from road to Sentinel car park towards Policemans Helmet
A young woman on the beautiful trail from Taft point to Sentinel Dome
A young woman in pink and black at Sentinel Dome in Yosemite National Park
Panoramic shot of the Yosemite National Park, Sentinel Dome Yosemite in the USA
Woman hiking in the Yosemite National Park, Sentinel Dome Yosemite the USA
A young man with a walking stick and arms raised at Sentinel Dome in Yosemite
A young woman in pink and black at Sentinel Dome in Yosemite National Park
A young man with a stick for walking in Sentinel Dome in Yosemite National Park
A young man sitting at the Sentinel Dome viewpoint in Yosemite National Park
A young woman on the beautiful trail from Taft point to Sentinel Dome
Cute shorkie puppy at watch on Sentinel duty at home in beach condo.
Tucson, Arizona, USA Skyline
A couple sitting in Sentinel Dome looking at Yosemite National Park. United States
A young man with a brown jacket in Sentinel Dome looking at Upper Yosemite Fall
A young man with a brown jacket in Sentinel Dome looking at Upper Yosemite Fall
Beautiful trail from Taft point to Sentinel Dome, Yosemite National Park
A young man celebrating that he has come walking to Sentinel Dome in Yosemite
A young man walking along Sentinel Dome looking at Yosemite National Park
Close-up of a meerkat, its fur details and vigilant eyes speak volumes of its sentinel life
Yosemite Valley with El Capitan, Sentinel Rock, Cathedral Rocks, and Bridalveil Fall, California
Views from Sentinel Dome, El Capitan and Yosemite National Park. United States
Tractor Sentinel Senior farmer, a vigilant guardian, surveying the expansive vineyard landscape.
Great blue heron the sentinel stands on wooden walkway to beach on foggy morning.
Upper Yosemite Fall from Sentinel Dome, Yosemite National Park. United States
