Map 1. Distribution of the members and thickness map of the Maquoketa Formation in Iowa
Map 2. Thickness and facies map of the Elgin Limestone member, Maquoketa Formation, in Iowa
Map 3. Thickness and facies map of the Clermont Shale member, Maquoketa Formation, in Iowa
Map 4. Thickness and facies map of the Fort Atkinson Limestone member, Maquoketa Formation, in Iowa
Map 5. Thickness and facies map of the Brainard Shale member, Maquoketa Formation, in Iowa
Map 6. Topographic map of the Maquoketa Formation in Iowa.