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Rainfall Following Drought Linked to Historic Nitrate Levels in Some Midwest Streams in 2013

Rainfall Following Drought Linked to Historic Nitrate Levels in Some Midwest Streams in 2013

Highest concentrations found in Iowa, Minnesota and Illinois. 

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Asian Carp Eggs Remain in Suspension at Lower Velocities than Previously Thought

Asian Carp Eggs Remain in Suspension at Lower Velocities than Previously Thought

Laboratory experiments in flowing water using synthetic surrogate Silver Carp eggs demonstrate egg suspension at lower velocities than previously...
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New Heartland Maps for the New Year

New Heartland Maps for the New Year

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...
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Visualize Your Water: A Citizen Science Challenge for High School Students

Visualize Your Water: A Citizen Science Challenge for High School Students

Today, the U.S. Geological Survey and the U.S. Environmental Protection Agency announce Visualize Your Water, a citizen science challenge for high...

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USGS Measures Historic Flooding Across the Nation

USGS Measures Historic Flooding Across the Nation

U.S. Geological Survey field crews are measuring record flooding on rivers and streams in 12 states across the country. USGS is making preparations...

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USGS Measures Flooding in Illinois

USGS Measures Flooding in Illinois

U.S. Geological Survey field crews are measuring near-historic flooding on rivers and streams across Illinois.

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New Tool Can Determine the Sources of Mercury Found in the Great Lakes

New Tool Can Determine the Sources of Mercury Found in the Great Lakes

For the first time, land and resource managers in the Great Lakes will be able to distinguish between the various sources of mercury in the...
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US Topo Maps Reach Milestone

US Topo Maps Reach Milestone

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating...
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Media Advisory: Low-Level Flights to Begin Assessing Local Mineral Resources this Monday

Media Advisory: Low-Level Flights to Begin Assessing Local Mineral Resources this Monday

U.S. Geological Survey scientists will conduct a high-resolution airborne survey to study the rock layers under a region of northeastern Iowa...

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Grass Carp Eggs Compromised by Settling on Streambeds

Grass Carp Eggs Compromised by Settling on Streambeds

Grass carp egg survival is compromised when they settle on streambeds and are potentially covered by sediments, according to a new study by the U.S...

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New Flood Warning Resources Available for West Branch

New Flood Warning Resources Available for West Branch

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...
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New Simulations of 1811-1812 New Madrid Earthquakes Show Strong and Prolonged Ground Shaking in Memphis and Little Rock

New Simulations of 1811-1812 New Madrid Earthquakes Show Strong and Prolonged Ground Shaking in Memphis and Little Rock

Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that...

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