Mapa de estados y condados afectados por el Dust Bowl, hecho por el gobierno federal de los EEUU (NRCS SSRA-RAD).
Para obtener más información sobre el mapa, consulte la versión original.
Spanish version of File:Map of states and counties affected by the Dust Bowl, sourced from US federal government dept. (NRCS SSRA-RAD).svg
Based on map by ID m12545a/55 by
Natural Resources Conservation Service, Soil Science and Resource Assessment, Resource Assessment Division (NRCS SSRA- RAD) Baitsville, MD Jan 2012
The source of that map: Map 2579, March 1954, U.S. Dept. Of Agriculture Soil Conservation Service

https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/about/history/?cid=stelprdb1049437
Soil Science and Resource Assessment, Resource Assessment Division (NRCS SSRA-RAD) (Division of the U.S. Dept. Of Agriculture)