How Ground Water Occurs
Images
Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.
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Groundwater is the saturated zone of soil/rock below the land surface
Map of study area, Yucca Valley, California.
Map of study area, Yucca Valley, California.
Map of study area, Yucca Valley, California.
View of California from above NW Mexico
Oblique orbital view of California looking NNW from above NW Sonora, Mexico, and northern Gulf of California
Oblique orbital view of California looking NNW from above NW Sonora, Mexico, and northern Gulf of California
American Beauty Berry Shrub
At the end of the boardwalk behind the Briggs Nature Center at Rookery Bay
National Estuarine Research Reserve, clusters of magenta fruits surround the
stems of this American beauty berry shrub.
At the end of the boardwalk behind the Briggs Nature Center at Rookery Bay
National Estuarine Research Reserve, clusters of magenta fruits surround the
stems of this American beauty berry shrub.
Brackish Pond Community
Looking from an observation deck, at Rookery Bay National Estuarine
Research Reserve, onto a flock of birds resting in a brackish (somewhat salty)
pond community. Mangrove islands grow inside and along the edges of the
pond.
Looking from an observation deck, at Rookery Bay National Estuarine
Research Reserve, onto a flock of birds resting in a brackish (somewhat salty)
pond community. Mangrove islands grow inside and along the edges of the
pond.
Channel Between Key Islands
Looking through a channel between the mangrove tree Florida Key islands, south of Boggy Key.
Looking through a channel between the mangrove tree Florida Key islands, south of Boggy Key.
Florida Bay
Looking south from the Black Betsy Keys shore, onto waters of Florida Bay. On the horizon, Key islands separate the green bay waters from the blue cloud-filled skies.
Looking south from the Black Betsy Keys shore, onto waters of Florida Bay. On the horizon, Key islands separate the green bay waters from the blue cloud-filled skies.
Great White Heron
A great white heron standing atop a dock in Florida Bay.
A great white heron standing atop a dock in Florida Bay.
Great White Heron Atop Mangrove Roots
A great white heron standing atop the mangrove roots of Boggy Key; a Florida Key island.
A great white heron standing atop the mangrove roots of Boggy Key; a Florida Key island.
Interior of Bob Allen Key
A short walk through the shallow mangrove perimeter to the interior of Bob Allen Key affords this view of a mostly clear, shallow ponded area.
A short walk through the shallow mangrove perimeter to the interior of Bob Allen Key affords this view of a mostly clear, shallow ponded area.
Little Madeira Bay
Looking south from Little Madeira Bay at a line of Key islands in Florida Bay.
Looking south from Little Madeira Bay at a line of Key islands in Florida Bay.
Mangroves
A close-up view of a mangrove islet of the Florida Keys, south of Boggy Key.
A close-up view of a mangrove islet of the Florida Keys, south of Boggy Key.
Osprey in Nest
An osprey sitting in its nest atop a channel marker in Florida Bay.
An osprey sitting in its nest atop a channel marker in Florida Bay.
Red Mangrove Root System
Red mangroves and their root systems at the edge of Shell Key, in Florida Bay.
Red mangroves and their root systems at the edge of Shell Key, in Florida Bay.
Alligator
An alligator hides partially submerged in the grassy waters-edge of Taylor
Slough at Everglades National Park.
An alligator hides partially submerged in the grassy waters-edge of Taylor
Slough at Everglades National Park.
Anhinga
A female anhinga roosts in the trees at Everglades National Park.
A female anhinga roosts in the trees at Everglades National Park.
Butterfly Pea Vine
A butterfly pea vine flowering in the sandy soils of Long Pine Key at Everglades
National Park.
A butterfly pea vine flowering in the sandy soils of Long Pine Key at Everglades
National Park.
Close-up of Quarry Wall
Skeletal patterns within the quarry wall at Windley Quarry show how coral formations might grow inside a coral reef.
Skeletal patterns within the quarry wall at Windley Quarry show how coral formations might grow inside a coral reef.
Cormorant
A double-crested cormorant rests nearby the ponded Taylor Slough waters at
Everglades National Park.
A double-crested cormorant rests nearby the ponded Taylor Slough waters at
Everglades National Park.
Freshwater Marl Prairie
Near the beginning of the main park road through Everglades National Park, sunbeams shine through heavy clouds onto the freshwater marl prairie.
Near the beginning of the main park road through Everglades National Park, sunbeams shine through heavy clouds onto the freshwater marl prairie.
Freshwater Snails
Looking down from the Pa-hay-okee boardwalk at Everglades National Park,
snail shells litter the grassy water's surface.
Looking down from the Pa-hay-okee boardwalk at Everglades National Park,
snail shells litter the grassy water's surface.