Search

Start Over Subject Environment Place Iowa Bounding Box -40.000931 39.999015 -39.999064 40.000987

2. Bailey's Ecoregions and Subregions of the United States, 2004

Datasets Stanford University Public content
2004. United States. Forest Service. This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.... National Atlas of the United States.

4. Classification of Forest Fragmentation in North America, 1992

Datasets Stanford University Public content
2002. Ritters, Kurt. This raster layer is a grid map of North America including the Caribbean and most of Mexico in GeoTIFF format. The map layer is an excerpt from a g... National Atlas of the United States.

5. Hazardous Waste, Generated, Shipped, Received 2001-2007

Datasets Stanford University Public content
2011. National Atlas of the United States. This polygon shapefile portrays the hazardous waste generated, shipped, and received by state and other areas within the United States, Puerto Rico... National Atlas of the United States.

6. National Fire Plan - Hazardous Fuels Reduction Program, 2004

Datasets Stanford University Public content
2004. National Atlas of the United States. This polygon shapefile portrays county level data for the fiscal-year-2004 National Fire Plan - Hazardous Fuels Reduction Program. The purpose of t... National Atlas of the United States.

7. National Wilderness Preservation System of the United States, 2006

Datasets Stanford University Public content
1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.

8. Omernik's Level III Ecoregions of the Continental United States, 2003

Datasets Stanford University Public content
2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.

9. Significant United States Earthquakes, 1568-2009

Datasets Stanford University Public content
2005. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.

10. Spread of Africanized Honey Bees in the United States, 1990-2005

Datasets Stanford University Public content
2006. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.