Erosivity Index Zone Map

Click on the county, state, or region of interest to find out the Index Zone

NOTE: The EI Distribution Zone Map has been updated, provided by Jim Marron, NRCS, Portland, Oregon. Due to the small scale, pointing and clicking on a specific county on the margin of a zonal area can give an inaccurate value. Please move the pointer away from the edge, even to the adjoining county but staying within the same zone, for a more accurate zonal value.