A view of a waterfall and flora on the rocky banks of Potomac River at the Great Falls Park on a sunny November day at 2:33pm.
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Great Falls View
A view of a waterfall and flora on the rocky banks of Potomac River at the Great Falls Park on a sunny November day at 2:33pm.
Brook Trout (Salvelinus fontinalis)
Salvelinus fontinalis with a fly in its mouth. The fish lies in the palm of a hand.
Salvelinus fontinalis with a fly in its mouth. The fish lies in the palm of a hand.
Long-horned Beetle (Cerambycidae)
An unidentified green long-horned beetle on red, arid ground. 12:18 PM.
An unidentified green long-horned beetle on red, arid ground. 12:18 PM.
Landscape View of Valles Caldera
A view of the interior of an old caldera of a very large extinct volcano - now Valles Caldera National Preserve. Most hills are lava domes, although some are the rim of the crater. 4:40 PM
A view of the interior of an old caldera of a very large extinct volcano - now Valles Caldera National Preserve. Most hills are lava domes, although some are the rim of the crater. 4:40 PM
Jemez Red Rocks at Walatowa
A view of the Red Rocks at Walatowa on a clear day at 12:18pm.
A view of the Red Rocks at Walatowa on a clear day at 12:18pm.
Jemez Red Rocks and Contrails
The Jemez Red Rocks at Walatowa, along with several contrails evident in the sky.
The Jemez Red Rocks at Walatowa, along with several contrails evident in the sky.
Forest View at Valles Caldera
Coniferous trees and rocky terrain at Valles Caldera. 4:20 pm
Coniferous trees and rocky terrain at Valles Caldera. 4:20 pm
Greater Roadrunner (Geococcyx californianus)
A roadrunner at the base of a old volcanic rock, near a trail in Petroglyph National Monument.
A roadrunner at the base of a old volcanic rock, near a trail in Petroglyph National Monument.
Unidentified Mating Beetles
Two unidentified beetles mating, possibly darkling beetles (Family Tenebrionidae) on a trail near the JA volcano in Petroglyph National Monument.
Two unidentified beetles mating, possibly darkling beetles (Family Tenebrionidae) on a trail near the JA volcano in Petroglyph National Monument.
Ancient Lava Flows at Petroglyph National Monument
Ancient Lava Flows at Petroglyph National MonumentVisitor trail in Boca Negra Canyon of the Petroglyph National Monument. A visitor center structure is located on the left. The ridge is a remnant of an old lava flow.
Ancient Lava Flows at Petroglyph National Monument
Ancient Lava Flows at Petroglyph National MonumentVisitor trail in Boca Negra Canyon of the Petroglyph National Monument. A visitor center structure is located on the left. The ridge is a remnant of an old lava flow.
Desert Millipede (Orthoporus ornatus)
A millipede seen near the top of the JA volcano in Petroglyph National Monument. 4:20 PM.
A millipede seen near the top of the JA volcano in Petroglyph National Monument. 4:20 PM.
Vulcan Volcano at Petroglyph National Monument
The Vulcan Volcano at the Petroglyph National Monument viewed from the southwest.
The Vulcan Volcano at the Petroglyph National Monument viewed from the southwest.
JA Volcano at Petroglyph National Monument
Pathway leading to the JA volcano at the Petroglyph National Monument.
Pathway leading to the JA volcano at the Petroglyph National Monument.
Black Volcano at Petroglyph National Monument
The Black Volcano at the Petroglyph National Monument viewed from the southwest.
The Black Volcano at the Petroglyph National Monument viewed from the southwest.
Blister Beetle (Megetra sp.)
A female beetle on a trail from parking lot to JA Volcano, image taken at 3:50pm. The white strand appears to be a synthetic fiber.
A female beetle on a trail from parking lot to JA Volcano, image taken at 3:50pm. The white strand appears to be a synthetic fiber.
Bank Erosion and Channel Incision
Bank erosion and channel incision along Silver Creek, a tributary to the Marengo River.
Bank erosion and channel incision along Silver Creek, a tributary to the Marengo River.
Copper Mine in the Republic of Georgia
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia.
Copper Mine in the Republic of Georgia
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia. A controlled blast as part of the mining process can be seen.
An open-pit mine for volcanic-hosted copper deposits from the Bolnisi District of the Republic of Georgia. A controlled blast as part of the mining process can be seen.
Decorah, Iowa
Views, looking west, to downtown Decorah, Iowa, from a city park bluff on east side of town. Downtown courthouse tower and church spires are prominent.
Views, looking west, to downtown Decorah, Iowa, from a city park bluff on east side of town. Downtown courthouse tower and church spires are prominent.
Pollution on the Baltic Sea Coast
Construction debris and other trash (soda bottles, etc.) lining the coast of the Baltic Sea in Saint Petersburg.
Construction debris and other trash (soda bottles, etc.) lining the coast of the Baltic Sea in Saint Petersburg.
Arid Soils
Jim Crowley taking spectral measurements of arid soil with a field spectrometer.
Jim Crowley taking spectral measurements of arid soil with a field spectrometer.