| General Photos |
Center-pivot
irrigation sprinkler
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Feedlot near
Guymon, Oklahoma
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Ariel view of
center-pivot field near Elkhart, Kansas
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The escarpment created by the relatively resistant
High Plains aquifer, viewed from northern
Weld Co., Colorado
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Oil well near
Guymon, Oklahoma
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Outcrop of the Ogallala Formation,
the main water-bearing unit if the High Plains
aquifer, near the Canadian River in Texas
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Playa lake; a dominant feature of the High Plains
area in the panhandle of Texas
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An Oklahoma High Plains sunset
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Harvesting alfalfa near the Cimarron River in Kansas
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Wheat field; a major crop in the central High Plains area
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Windmill near Turon, Kansas
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Irrigated corn
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Local Texas resident, southern High Plains.
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A sea of sunflowers, southern High Plains.
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Earth, Texas, southern High Plains.
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Rangeland setting of the norhtern High Plains.
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Rangeland setting in the Nebraska Sandhills, northern High Plains.
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High-capacity irrigation well typical of the High Plains irrigated agricultural setting.
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Ground-water sample collection inside a HPGW sampling vehicle.
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| Transect Study |
Ariel view of the Cimarron transect site near the Cimarron River in Kansas
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Developing the Cimarron transect well using air
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Drilling rig used for drilling transect wells; site near Liberal Kansas
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Close-up of transect-site drill rig; Cimarron site
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Core from the Permian red beds that underlie the High Plains aquifer
in southwestern Kansas and the Oklahoma panhandle
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Ariel view of center pivots in the Panhandle of Texas, southern High Plains.
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Installation of a transect-study well in the rangeland of the northern High Plains.
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Development of a ground-water well.
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| Unsaturated-Zone Study |
Special drill rig used for drilling the unsaturated-zone study wells.
The drill rig is a casing-advance type that brings cuttings to the surface
using air rather than fluid.
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Instrumentation for monitoring the unsaturated zone in the central High
Plains
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Detail of surface-installation at the unsaturated-zone study sites, central High Plains.
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Gas sampling in the mobile water-quality lab, central High Plains.
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Collection of core for analysis of physical properties and chemical analysis.
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Collection of drill cuttings.
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Installation of heat dissipation probes, suction lysimeters, and gas sampling ports.
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Well installation using casing-advance drilling technology.
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Installation of a meteorological station at a northern High Plains rangeland site.
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Installed meteorological station at a northern High Plains rangeland site.
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Gas collection from water sampled from an unsaturated-zone study well.
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| Reconnaissance Study |
Geophysical logging
|
Bailing a well
|
Completed well
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Set-up for sampling the wells; a mobile water-quality lab and a pickup
to hold the pump.
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Special pump used for sampling wells where there is a large depth
to water
|
|
| Focused-Flow Study |
Collection of soil cores using a geoprobe, northern High Plains.
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Application of KBr tracer to estimate infiltration rates at an unsaturated-zone well installation.
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| Land-Use Studies |
Installation of land-use monitoring well at sunset on the southern High Plains.
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U.S. Department of the Interior | U.S. Geological Survey
