National Atlas of the United StatesThis point shapefile includes Holocene volcanoes, which are those thought to be active in the last 10,000 years, that are within an extended area of the northern hemisphere centered on the United States. The data are a subset of data available from the Global Volcanism Program. This file is a replacement for the April 2004 map layer. This layer is part of the 1997-2014 edition National Atlas of the United States.These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.Shapefilehttps://purl.stanford.edu/gx245jm9245engNational Atlas of the United StatesPublicVolcanoesVolcanic eruptionsCalderasMaarsSubmarine volcanoesEconomyGeoscientific InformationVolcanoes: United States, 2004DatasetsAsiaAtlantic OceanCanadaEuropeIcelandMexicoUnited StatesAlaskaAlabamaArizonaArkansasColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew York (State)North CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashington (D.C.)Washington (State)West VirginiaWisconsinWyoming2004Stanford