Comparative Evaluation of Groundwater Management Practices of the Ogallala Aquifer

Mining of groundwater, or extracting a larger quantity of water than what is naturally returned to the aquifer through recharge, has been occurring for more than fifty years. The minimal natural recharge to the Ogallala Aquifer makes sustainable use of this resource a daunting task for states across the High Plains that rely on it to support their well-established ways of life. This task is compounded when considering the different combinations of federal, state and local governance, as well as regional economic and social frameworks that each state overlaying the aquifer experiences. This project critically examines factors contributing to groundwater management successes and failures of three states that overlay the majority (87%) of this resource: Nebraska, Kansas and Texas.

Systematic revision of fossil prairie dogs with descriptions of two new species / H. Thomas Goodwin.

no.86 (1995)

A morphometric analysis of geographic variation within Sorex monticolus (Insectivora:Soricidae) / Lois F. Alexander.

no.88 (1996)

Relationships of pocket gophers of the genus Geomys from the Central and Northern Great Plains / by Lawrence R. Heaney and Robert M. Timm.

no.74 (1983)

Phylogenetic studies of North American minnows : with emphasis on the genus Cyprinella (Teleostei, Cypriniformes) / by Richard L. Mayden.

no.80 (1989)

Vertebrate ecology and systematics : a tribute to Henry S. Fitch / edited by Richard A. Seigel ... [et al.].

no.10 (1984)

Readings in mammalogy / selected from the original literature and introduced with comments by J. Knox Jones, Jr., and Sydney Anderson.

no.2 (1970)

Battles of Mexico, Mexico City, Mexico, 1847 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Battles of Mexico : survey of the line of operations of the U.S. Army under the command of Major General Winfield Scott on the 8th, 12th, & 13th Septr. 1847 made under the direction of Maj. W. Turnbull Topl. Engineers by Capt. McClellan & Lieut. Hardcastle, Topl. Engineers ; drawn by Capt. McClellan. It was published by Lit. de Salazar in 1847. Scale [ca. 1:15,900]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM Zone 14N, meters, WGS 1984) projected coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, built-up areas, selected buildings with names of landowners, drainage, canals, troop disposition, movements, and lines of defenses, fortifications, ground cover, and more. Relief shown by hachures. Includes also legend of troop movements, chart of "killed or wounded & missing 13th", and inset: "Worth's Command on 8th Sept."This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

Battles of Mexico, Mexico City, Mexico, 1848 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Battles of Mexico : survey of the line of operations of the U.S. Army, under command of Major General Winfield Scott, on the 19th & 20th August & on the 8th, 12th & 13th September, 1847, made by Maj. Turnbull, Capt. McClellan & Lieut. Hardcastle, Topl. Engs. ; drawn by Capt. McClellan. It was published by C.B. Graham in 1848. Scale [ca. 1:31,680]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM Zone 14N, meters, WGS 1984) projected coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, built-up areas, selected buildings with names of landowners, drainage, canals, troop disposition, movements, and lines of defenses, fortifications, ground cover, and more. Relief shown by hachures and pictorially. Includes positions and numbers of troops, and casualty statistics for the battles of Contreras, Churubusco, Molino del Rey, and Chapultepec, and inset: Part of the Valley of Mexico. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

New York, N.Y. and vicinity, 1961 : Plainfield, N.J.-N.Y. (8 Sheet Set) (Raster Image)

This layer is a georeferenced raster image of the United States Geological Survey 7.5 minute topographic sheet map entitled: New York and vicinity : Plainfield, N.J.-N.Y., 1956. It is part of an 8 sheet map set covering the metropolitan New York City area. It was published in 1961. Scale 1:24,000. The source map was prepared by the Geological Survey from 1:24,000-scale maps of Roselle 1955, Chatham 1955, Plainfield 1955, and Perth Amboy 1956 7.5 minute quadrangles compiled by the Army Map Service. Culture revised by the Geological Survey. Hydrography compiled from USC&GS charts 286 (1954) and 375 (1953). The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM) Zone 18N NAD27 projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. USGS maps are typical topographic maps portraying both natural and manmade features. They show and name works of nature, such as mountains, valleys, lakes, rivers, vegetation, etc. They also identify the principal works of humans, such as roads, railroads, boundaries, transmission lines, major buildings, etc. Relief is shown with standard contour intervals of 10 and 20 feet; depths are shown with contours and soundings. Please pay close attention to map collar information on projections, spheroid, sources, dates, and keys to grid numbering and other numbers which appear inside the neatline. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Statistical models of accidents on interchange ramps and speed-change lanes.

Federal Highway Administration, Office of Safety and Traffic Operations, Washington, D.C.

Loading functions for assessment of water pollution from nonpoint sources /

Item 431-I-12

Determination of kinetics of phosphorus mineralization in soils under oxidizing conditions /

Mode of access: Internet.

Organic compounds in organophosporus pesticide manufacturing wastewaters /

Issued Sept. 1978.

Analysis of airborne viable bacteria at solid waste processing facilities /

Mode of access: Internet.