Revision History for U.S. Geological Survey Scientific Investigations Map 3423

By Joshua F. Valder, Adel E. Haj, Emilia L. Bristow, and Kristen J. Valseth

Delineation of Selected Lithologic Units Using Airborne Electromagnetic Data near Cedar Rapids, Iowa

-----------------------------------------------------
Posted online December 12, 2018

-----------------------------------------------------
Revised and reposted February 7, 2019

Pamphlet, p. 3, figure 1, the explanation was revised. The U.S Geological Survey streamgage and number text was switched with the well location with map identifier (table 1) text. The wells symbol is the green filled circle and the USGS streamgage is the black filled triangle.