Map shows Extent of Dust Bowl. Most severe wind erosion, 19 35 to 19 38, is a small irregular circle with its diameter at the meeting points of Kansas, Colorado, New Mexico, and Oklahoma. Severe Wind Erosion 19 40 is an irregular shaped upside down triangle including regions of east Colorado and west Kansas and a very tiny region in Oklahoma. Severe wind erosion 19 38 occurs is an irregular circle around and including the most severe wind erosion and severe wind erosion 19 40 regions. Severe wind erosions 19 35 to 19 36 is an irregular elongated oval including regions of Colorado, Kansas, Oklahoma, and New Mexico.

Map shows Extent of Dust Bowl. Most severe wind erosion, 19 35 to 19 38, is a small irregular circle with its diameter at the meeting points of Kansas, Colorado, New Mexico, and Oklahoma. Severe Wind Erosion 19 40 is an irregular shaped upside down triangle including regions of east Colorado and west Kansas and a very tiny region in Oklahoma. Severe wind erosion 19 38 occurs is an irregular circle around and including the most severe wind erosion and severe wind erosion 19 40 regions. Severe wind erosions 19 35 to 19 36 is an irregular elongated oval including regions of Colorado, Kansas, Oklahoma, and New Mexico.