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Rock formation of columnar basalt, Devils Postpile National Monument, Mammoth Mountain, California, United States of America, North America
View over Yosemite National Park with Half Dome, UNESCO World Heritage Site, California, United States of America, North America
View of Transamerica Pyramid building and Columbus Tower on Columbus Avenue, North Beach, San Francisco, California, United States of America, North America
View of Giant Sequoias tree in Tuolumne Grove Trail, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Santa Barbara, Malibu Mountains, California, United States of America, North America
Sunset and couple in love near the Golden Gate Bridge, Baker Beach, San Francisco, California, United States of America, North America
View of Golden Gate Bridge from Golden Gate Bridge Vista Point at night, San Francisco, California, United States of America, North America
View of San Francisco skyline and Oakland Bay Bridge from Treasure Island at sunset, San Francisco, California, United States of America, North America
Joshua trees, Yucca brevifolia, under star trails in Joshua Tree National Park, California, USA.
An adult western patch-nosed snake, Salvadora hexalepis, in Joshua Tree National Park, California, USA.
Western gull (Larus occidentalis), in non-breeding adult plumage, Monterey Bay, Monterey, California, United States of America, North America
Golden Gate Bridge from Marshall's Beach, San Francisco, California, United States of America, North America
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Humpback whale (Megaptera novaeangliae) breaching in the Monterey Bay National Marine Sanctuary, California, United States of America, North America
Transient killer whale (Orcinus orca) breaching in the Monterey Bay National Marine Sanctuary, California, United States of America, North America
Transient killer whale (Orcinus orca) breaching in the Monterey Bay National Marine Sanctuary, California, United States of America, North America
Salt flats, Death Valley National Park, California, United States of America, North America
Humpback whale (Megaptera novaeangliae), breaching in Monterey Bay National Marine Sanctuary, California, United States of America, North America
Long-beaked common dolphins (Delphinus capensis), bow-riding off Magdalena Island, Baja California Sur, Mexico, North America
San Esteban spiny-tailed iguanas (Ctenosaura conspicuosa), eating cactus, Isla San Esteban, Baja California, Mexico, North America
Playful California sea lion (Zalophus californianus), underwater at Los Islotes, Baja California Sur, Mexico, North America
Adult bull Roosevelt elk (Cervus canadensis roosevelti), in rut near Highway 101, California, United States of America, North America
Brown pelicans (Pelecanus occidentalis) at a fish processing plant, Puerto San Carlos, Baja California Sur, Mexico, North America
Elegant terns (Thalasseus elegans), breeding colony on Isla Rasa, Baja California, Mexico, North America
California gray whale calf (Eschrichtius robustus) underwater, San Ignacio Lagoon, Baja California Sur, Mexico, North America
Adult Heermann's gull (Larus heermanni), in flight near Isla Rasa, Baja California, Mexico, North America
Adult long-beaked common dolphin (Delphinus capensis) leaping in Loreto Bay National Park, Baja California Sur, Mexico, North America
Wind swept barkhan sand dunes on the barrier island of Isla Magdalena, Baja California Sur, Mexico, North America
Reflections in Tenaya Lake in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Tunnel View vista of Yosemite Valley in early morning sunlight, Yosemite, UNESCO World Heritage Site, California, United States of America, North America
View from Olmsted Point to Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Commercial whale watching boat Goddess Fantasy operating in Monterey Bay Marine Sanctuary, California, United States of America, North America
Adult California gray whale (Eschrictius robustus), spy-hopping in San Ignacio Lagoon, Baja California, Mexico, North America
Mother and calf bottlenose dolphins, Tursiops truncatus, surfacing off Isla Carmen, Baja California Sur, Mexico.
Mother and calf bottlenose dolphins, Tursiops truncatus, surfacing off Isla Carmen, Baja California Sur, Mexico.
Brown pelican, Pelecanus occidentalis, resting on the surface of the ocean, Isla Carmen, Baja California Sur, Mexico.
Brown pelican, Pelecanus occidentalis, diving for fish off Isla Carmen, Baja California Sur, Mexico.
An adult tiger whiptail, Cnemidophorus tigris estebanensis, endemic to Isla San Esteban, Baja California, Mexico.
A forest of Mexican giant cardon cactus, Pachycereus pringlei, in Puerto Refugio, Baja California, Mexico.
An aerial view of Isla Coronado from a commercial flight, Baja California Sur, Mexico.
An adult bottlenose dolphin, Tursiops truncatus, bow riding our our skiff outside Newport Beach, California, USA.
An adult bottlenose dolphin, Tursiops truncatus, bow riding our our skiff outside Newport Beach, California, USA.
An adult California gray whale, Eschrichtius robustus, surfacing near homes in Newport Beach, California, USA.
An adult California gray whale, Eschrichtius robustus, surfacing near homes in Newport Beach, California, USA.
California sea lions, Zalophus californianus, hauled out on a buoy in the channel in Newport Beach, California, USA.
California sea lions, Zalophus californianus, hauled out on a buoy in the channel in Newport Beach, California, USA.
California sea lions, Zalophus californianus, hauled out on a buoy in the channel in Newport Beach, California, USA.
An adult common dolphin, Delphinus delphis leaping in the ocean off Newport Beach, California, USA.
An adult fin whale, Balaenoptera physalus, surfacing in the ocean off Newport Beach, California, USA.
An adult humpback whale, Megaptera novaeangliae, surfacing in the ocean off Newport Beach, California, USA.
Bay Bridge and city skyline, San Francisco, California, USA, North America
Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasita at sunset, Baja California Norte, Mexico, North America
California sea lion bull (Zalophus californianus) hauled out at Los Islotes, Baja California Sur, Mexico, North America
Downtown, Bonaventure Hotel in background, Los Angeles, California, United States of America, North America
Union Square area, San Francisco, California, United States of America, North America
Piedras Blancas Elephant Seal Rookery, San Simeon, San Luis Obispo County, California, United States of America, North America
The coastline of Isla Espiritu Santo, Baja California Sur, Sea of Cortez, Mexico, North America
Adult humpback whale (Megaptera novaeangliae), breaching in the shallow waters of Cabo Pulmo, Baja California Sur, Mexico, North America
Boojum tree (Fouquieria columnaris), just outside Bahia de los Angeles, Baja California, Sea of Cortez, Mexico, North America
Boojum tree (Fouquieria columnaris), just outside Bahia de los Angeles, Baja California, Sea of Cortez, Mexico, North America
Guadalupe fur seals (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
California sea lions (Zalophus californianus), grouped together on a channel marker off Newport Beach, California, United States of America, North America
Magnificent frigatebird chicks (Fregata magnificens) with parents, Isla del Espiritu Santo, Baja California Sur, Mexico, North America
Sandstone cliff formations at sunrise on Isla San Jose, Baja California Sur, Sea of Cortez, Mexico, North America
Layers of lava flows and tuff from the dormant volcano on Isla Tortuga, Baja California, Sea of Cortez, Mexico, North America
Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seal (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seal (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Adult elegant tern (Thalasseus elegans), plunge diving for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seal (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Salt Flats at Badwater, at minus 282 feet the lowest point in the USA, Death Valley National Monument, California/Nevada, USA
A scorpion (Genus Paruroctonus), near Los Gatos, Baja California Sur, Sea of Cortez, Mexico, North America
Adult fin whale (Balaenoptera physalus), dorsal fin detail surfacing off Newport Beach, California, United States of America, North America
By-the-wind sailor (Velella velella), floating on the surface of the sea outside Newport Beach, California, United States of America, North America
By-the-wind sailors (Velella velella), floating by the hundreds on the surface of the sea outside Newport Beach, California, United States of America, North America
By-the-wind sailor (Velella velella), held in a hand without stinging just outside Newport Beach, California, United States of America, North America
Housing along the coastline just outside Newport Beach, California, United States of America, North America
Illuminated Pier 7 at night, San Francisco, California, United States of America, North America
Natural rock formations with Manly Beacon at Zabriskie Point at sunrise, Death Valley National Park, Eastern California, California, United States of America, North America
California gray whale calf (Eschrictius robustus), with excited tourists in San Ignacio Lagoon, Baja California, Mexico, North America
The iconic Golden Gate Bridge, San Francisco, California, United States of America, North America
Beautiful view of El Captain and Yosemite Valley during a summer sunrise, UNESCO World Heritage Site, California, United States of America, North America
The iconic Golden Gate Bridge, San Francisco, California, United States of America, North America
Car driving along the road in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Warm light of the sunrise envelop the sand dunes at Mesquite Flat, Death Valley, California, United States of America, North America
Details of the sand dunes at Mesquite Flat, Death Valley, California, United States of America, North America
Two sheephead (Semicossyphus pulcher) In a kelp forest, Catalina Island, California.
Sunrays shining on a Garibaldi damselfish, Catalina Island, California.
A bioluminescent tunicate, Catalina Island, California.
Kelp forest with school of fish, Catalina Island, California.
September 12, 2009 - Castle Geyser eruption with rainbow, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Castle Geyser eruption with rainbow, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Sawmill Geyser, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Chromatic Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Morning Glory Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Chromatic Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Steam rising over Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 12, 2009 - Grand Prismatic Spring, Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
September 11, 2009 - White Dome Geyser erupting, Lower Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.
Mexican giant cardon (Pachycereus pringlei), on Isla San Esteban, Baja California, Sea of Cortez, Mexico, North America