Unified Interior Regions

One of every four fishes in streams of 12 western states is non-native, according to a U.S. Geological Survey (USGS) study published in November 2005 in the North American Journal of Fisheries Management. 

One of every four fishes in streams of 12 western states is non-native, according to a U.S. Geological Survey (USGS) study published in November 2005 in the North American Journal of Fisheries Management. And, researchers found, it´s not just that there are a lot of non-native fishes but they are also widespread...

Most species of migratory birds in the Northern Hemisphere make two long trips each year, one north for nesting and the other south for the winter. New information collected by USGS scientists shows that individuals of at least one species, the prairie falcon, make three separate long trips each year.

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

Included this month:

Hurricane Isabel Makes Her Mark on the North Carolina Coast

Mayans in the Everglades?

Submerged Ice Bridge Reveals Ancient Secrets About Alaska

America’s Deepest Coral Reef

Young Tortises on Mojave’s Menu

Measuring Floods From A Distance

Is the World’s Fuel Tank on Empty?

The U.S. Geological Survey (USGS) is participating in nine of the 14 public workshops scheduled by the U.S. Army Corps of Engineers (COE) this fall. The Corps of Engineers is conducting the workshops and a series of hearings to receive public comment on their recently released Revised Draft Environmental Impact Statement to the Master Water Control Manual for the Missouri River system.

As North Dakota and Minnesota communities brace for the worst flooding since 1997, the U.S. Geological Survey (USGS) Water Resources Office in North Dakota is activating a 2001 Flood Tracking Website to assist residents of the Red River Basin.

U.S. Geological Survey (USGS) scientists are making headway in unraveling clues to the causes of massive die-offs of frogs and other amphibians.

A recent die-off of salamanders in Utah has prompted USGS wildlife health officials to issue an October 21, 1998 wildlife health alert. The incident followed salamander die-offs earlier this summer in Maine and North Dakota. In all three cases a virus is believed to be responsible.

The flood may be over but the hydrologic work continues on and is more critical than ever, was the message that U.S. Geological Survey Director Gordon Eaton gave to the troops in Bismarck Friday (Aug. 1, 1997).