Strippable Lignite Deposits, Slope and Bowman Counties, North Dakota: Issue 1015

Members of the Borden Formation (Mississippian) in North-central Kentucky: Issue 1354

Stratigraphy of the Chattanooga Shale (Upper Devonian and Lower Mississippian) in Vicinity of Big Stone Gap, Wise County, Virginia: Issue 1499

Harrodsburg Limestone in Kentucky: Issue 1224

Reconnaissance for Radioactivity in the Metal-mining Districts of the San Juan Mountains, Colorado: Issue 1046