Unified Interior Regions

Iowa

The U.S. Geological Survey's (USGS) mission is to provide reliable scientific information about the Nation's natural resources. An integral part of that mission is to provide consistent, long-term water-resources data. To do so, the Central Midwest WSC operates a widespread surface and ground-water data collection network as well as research on a wide range of scientific issues.

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Highest stream mycotoxin concentrations were observed during spring snowmelt conditions in agricultural settings
January 2, 2010

Stream Mycotoxin Concentrations were Highest During Spring Snowmelt

Highest stream mycotoxin concentrations were observed during spring snowmelt conditions in agricultural settings such as pictured in this Iowa stream.

Baseflow measurements of field parameters (dissolved oxygen, water temperature, specific conductance, and pH)
September 14, 2009

Baseflow measurements of field parameters

The team of USGS scientists collected stream water samples before and after rainfall events for this study. In this photo a USGS scientist is taking measurements of field parameters (dissolved oxygen, water temperature, specific conductance, and pH) from New York Branch, Iowa, at low flow (baseflow) conditions.

Midwest farm landscape
September 19, 2008

Farm in Iowa with silos

This farm in Iowa sits amid a field of corn.  USGS researches the effects of agricultural use of fertilizers, pesticides, and other chemicals on surface-water and groundwater quality.

Farm in Iowa in morning mist
September 19, 2008

Farm in Iowa in morning mist amid cornfield

Iowa farm in a cornfield in the early morning mist.  USGS research investigates the effects of agricultural use of fertilizers, pesticides, and other chemicals in the quality of surface water and groundwater.

Image: Decorah, Iowa
September 20, 2005

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.

Image: Decorah, Iowa
September 20, 2005

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.  

 

Image: Decorah, Iowa
September 20, 2005

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.  

 

Picture of a road with setting sun
July 1, 2002

Road shot with setting sun in Iowa

A road shot with the setting sun in the background. The photograph was taken on a Land Cover Trends field trip in Iowa.

A picture of a future development billboard
July 1, 2002

A future development billboard in an abandoned agriculture field

A future development billboard showing plots available. In the background there is an abandoned agriculture field. The picture was taken in Iowa during a Land Cover Trends field trip.

USGS
August 3, 2021

Aggregates Data by State, Type, and End Use; 1971–2018

This data set contains supplemental aggregates data for the USGS Minerals Yearbook Volume II—Area Reports: Domestic. It contains data for the years 1971 through 2018 and replaces the discrete construction aggregate tables that were included in the individual State chapters prior to 2014. It contains

TNMCorps Mapping Challenge: City/Town Halls in IA, MN as of 08/05/21

A before-and-after image showing the change in edits between 7/29/21 and 8/05/21. Volunteers edited almost 20 points during this timeframe.

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2016 Topo of Des Moines
January 26, 2016

New US Topo maps for Iowa and Kansas are now available in the USGS Store for free download. The new maps of these Midwestern states feature the inclusion of the U.S. Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER) road data.

Image: EON Geosciences Airplane
October 17, 2015

U.S. Geological Survey scientists will conduct a high-resolution airborne survey to study the rock layers under a region of northeastern Iowa, starting Monday, October 19, and lasting into November.

USGS
August 17, 2015

The City of West Branch, Iowa, and the U.S. Geological Survey recently partnered to provide real-time streamflow and flood warning information on the west branch of flood-prone Wapsinonoc Creek.

Image: Pallid Sturgeon
July 30, 2015

Three tiny fish larvae that were captured by U.S. Geological Survey scientists in May 2014 have just been confirmed to be pallid sturgeon. These new genetic identifications add to mounting evidence that critically endangered pallid sturgeon spawned successfully in the Lower Missouri River downstream of Gavins Point Dam, South Dakota.

USGS
July 15, 2015

The drainage of small wetlands can decrease wildlife habitat and may contribute to flooding in the Prairie Pothole Region (PPR), according to a recent U.S. Geological Survey study.

USGS
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s Northeast Climate Science Center (NE CSC) is awarding nearly $700,000 to universities and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.

USGS
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s North Central Climate Science Center in Fort Collins, Colorado, is awarding nearly $400,000 to universities and other partners.

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