Publication Information: Key Details: Catalog B053 Publication Year 1928 Author J. E. Lamar Publication Type Bulletins Additional Details: Publication Link Bulletin 53 Plate 1 (600 K pdf) Map showing the distribution of the St. Peter sandstone in… Plate 2 (900 K pdf) Map showing thickness of St. Peter sandstone in Illinois Plate 3 (1 MB pdf) Structure contour map drawn on the top of the St. Peter san… Publication Price Out of print