USGS Small-scale Dataset - Congressional Districts of the United States - 110th Congress 200710 Shapefile

This map layer portrays the Congressional Districts of the United States for the 110th Congress. This is a revised version of the July 2007 map layer.

Types: Citation; Tags: Alabama, Alaska, Arizona, Arkansas, Boundaries, All tags... California, Colorado, Congress, Congressional District boundaries, Congressional Districts, Connecticut, Delaware, Delegate Districts, District of Columbia, Downloadable Data, Downloadable Data, Florida, Georgia, Hawaii, House of Representatives, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, National, National, National Atlas of the United States, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, Shapefile, Shapefile, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets - Boundaries, South Carolina, South Dakota, State boundaries, States, Tennessee, Texas, U.S. Virgin Islands, US, USA, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, boundaries, Fewer tags

USGS Small-scale Dataset - Congressional Districts of the United States - 112th Congress 201101 Shapefile

This map layer portrays the Congressional Districts of the United States for the 112th Congress. This is an update of the June 2010 map layer.

Types: Citation; Tags: Alabama, Alaska, Arizona, Arkansas, Boundaries, All tags... California, Colorado, Congress, Congressional District boundaries, Congressional Districts, Connecticut, Delaware, Delegate Districts, District of Columbia, Downloadable Data, Downloadable Data, Florida, Georgia, Hawaii, House of Representatives, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, National, National, National Atlas of the United States, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, Shapefile, Shapefile, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets - Boundaries, South Carolina, South Dakota, State boundaries, States, Tennessee, Texas, U.S. Virgin Islands, US, USA, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, boundaries, Fewer tags

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 3. Detailed information on calculations of environmental tracer data.

High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C and 4Herad) of groundwater age from 80 public-supply wells (PSWs). Groundwater ages were estimated by calibration of tracers to lumped parameter models and ranged from modern (1 Myr) in the most downgradient, confined portions of the potable system. More than 80 and 40 percent of mean groundwater ages were older than 1000 and 50,000 yr, respectively. Anoxic, Fe-reducing conditions and increased mineralization develop with time in the aquifer system and mobilize Ra into solution resulting in the frequent occurrence of combined...

Categories: Data; Types: Citation; Tags: Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, All tags... NAWQA, Wisconsin, alpha recoil, cycle 3, dissolved gas, groundwater age, lumped parameter modeling, nawqa, radium, radium 226 distribution coefficient, recharge temperature, water quality, Fewer tags

1975 Upper Mississippi River System Color Infrared Aerial Photographs: Pool 26

This dataset consists of digital scans of color infrared aerial photography from the Upper Mississippi River collected in 1975.

Categories: Data; Types: Citation; Tags: Illinois, Iowa, Minnesota, Mississippi River, Missouri, All tags... Upper Mississippi River, Wisconsin, aerial photographs, air photos, color infrared, photography, Fewer tags

Supporting Data QC Field Spikes SW NAWQA 2012-2015

Field spikes were prepared at 207 stream and river sites as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project between December, 2012, and September, 2015. At the field site, a depth-and width-integrated environmental sample was collected, and one subsample of the environmental sample was spiked with a known amount of a spike mixture. Both the spiked subsample ("spike sample") and another subsample ("environmental sample") of the original water sample were analyzed for pesticides at the USGS National Water Quality Laboratory (NWQL) by direct injection liquid chromatography with tandem mass spectrometry (LC-MS/MS), and were used to calculate the spike recovery of each analyte....

Tags: Alabama, Alaska, Arizona, California, Colorado, All tags... Connecticut, District of Columbia, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Jersey, New York, North Carolina, North Dakota, Ohio, Oregon, River, South Carolina, Stream, Surface water, Texas, United States, Utah, Virginia, Washington, field spike, fungicide, herbicide, insecticide, laboratory methods, pesticide, pesticide degradate, quality control, water quality, Fewer tags

USGS Combined Vector for Anderson Lake, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, FileGDB 10.1, All tags... Itasca County, MN, Minnesota, Public Land Survey System, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Alexandria East, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Douglas County, Downloadable Data, All tags... MN, Minnesota, Public Land Survey System, Shapefile, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Elmer, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, MN, All tags... Minnesota, Public Land Survey System, Shapefile, St. Louis County, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Emily, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Crow Wing County, Downloadable Data, All tags... MN, Minnesota, Public Land Survey System, Shapefile, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Floodwood, Minnesota 20160601 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, FileGDB 10.1, All tags... MN, Minnesota, Public Land Survey System, St. Louis County, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Flom, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Becker County, Clay County, Combined Vector, Combined Vector, All tags... Downloadable Data, MN, Minnesota, Norman County, Public Land Survey System, Shapefile, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Gillis Lake, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Cook County, Downloadable Data, All tags... FileGDB 10.1, MN, Minnesota, Public Land Survey System, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Glencoe, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, FileGDB 10.1, All tags... MN, McLeod County, Minnesota, Public Land Survey System, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Jasper, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, FileGDB 10.1, All tags... MN, Minnehaha County, Minnesota, Moody County, Pipestone County, Public Land Survey System, Rock County, SD, South Dakota, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Lake Johanna, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, Kandiyohi County, All tags... MN, Minnesota, Pope County, Public Land Survey System, Shapefile, Stearns County, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Lake Polly, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Cook County, Downloadable Data, All tags... FileGDB 10.1, Lake County, MN, Minnesota, Public Land Survey System, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Lake Miltona East, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Douglas County, Downloadable Data, All tags... MN, Minnesota, Otter Tail County, Public Land Survey System, Shapefile, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Lake Osakis East, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, MN, All tags... Minnesota, Public Land Survey System, Shapefile, Todd County, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for McIntosh NE, Minnesota 20160528 7.5 x 7.5 minute Shapefile

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Combined Vector, Combined Vector, Downloadable Data, MN, All tags... Minnesota, Polk County, Public Land Survey System, Shapefile, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags

USGS Combined Vector for Montevideo, Minnesota 20160528 7.5 x 7.5 minute FileGDB 10.1

Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.

Types: Citation; Tags: 7.5 x 7.5 minute, Chippewa County, Combined Vector, Combined Vector, Downloadable Data, All tags... FileGDB 10.1, Lac qui Parle County, MN, Minnesota, Public Land Survey System, US, United States, Yellow Medicine County, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags