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Start Over Subject GeoscientificInformation Year 2005 Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. United States Volcanoes, 2008

Datasets Columbia University Restricted content
2005. Smithsonian Institution, Global Volcanism Program, National Atlas of the United States, and the United States Geological Survey and ESRI. United States Volcanoes is a polygon theme representing volcanoes thought to be active in the last 10,000 years (Holocene), in and near the United ... ESRI.

2. United States Volcanoes, 2012

Datasets Columbia University Restricted content
2005. Smithsonian Institution, Global Volcanism Program, National Atlas of the United States, and the United States Geological Survey and Environmental Systems Research Institute (Redlands, Calif.). United States Volcanoes is a polygon theme representing volcanoes thought to be active in the last 10,000 years (Holocene), in and near the United ... Esri.