1. Total intensity aeromagnetic map of part of Marquand quadrangle, Missouri relative to arbitrary datum / [cartographic material] Yale Public content 1951. 2023-06-08T17:28:12Z. 2023-06-13T21:35:20Z. Dempsey, William J. U.S. Geological Survey. English. cartographic image. Public. Missouri, Bollinger County, Madison County, Wayne Counaty, Bollinger County., and Madison County.