Farther east, there is a fairly good locality in the stream bluff of Kerton Creek about 3¼ miles north and a quarter of a mile west of Bluff City. There the plants are found about 18 feet below a coal bed. Numerous fern impressions also are found in shale beds above the Herrin (No. 6) Coal along the Middle Branch of Copperas Creek, six miles west of Glasford. Other specimens may be found in these beds elsewhere in the area. McDonough County [Illustration: uncaptioned] In some of the small underground mines near Colchester, the shale overlying the Colchester (No. 2) Coal contains ironstone concretions similar to those from northeastern Illinois. More than 50 species of plant fossils have been reported, but they were collected many years ago from spoil heaps at the mines. Beds of the same age crop out widely in other localities in western Illinois and may contain plant fossils. [Illustration: _Plate 4_] _Sphenopteris_ ⅗× _Linopteris_ ⅗× _Neuropteris_ ½× _Odontopteris_ ⅗× _Cycopteris_ ½× _Alethopteris_ ⅗× _Alethopteris_ ⅗× _Odontopteris_ ½× _Alethopteris_ ⅗× Vermilion County In outcrops about three miles below Georgetown on the Little Vermilion River, a number of fossil plant species and one insect species have been collected from shales overlying the Herrin (No. 6) Coal, locally called the Grape Creek Coal. The fossils occur in concretions much like those from Mazon Creek. An occasional stem replacement or impression is found in the concretionary shale above the No. 7 Coal in the strip mine area west of Hillery. In fact, isolated fragmentary plant specimens are fairly common in the Danville mining area, but no especially productive localities have come to light. Other Northern Illinois Localities In addition to the counties listed above, a number of others have produced plant fossils. For example, there are records of plant fossils found southeast of Franklin in Morgan County, at Neelys in Peoria County, and at a number of places in the southern and western parts of Rock Island County. Local exploration is certain to turn up numerous other collecting places at present unknown. [Illustration: uncaptioned] [Illustration: _Plate 5_] _Codonotheca_ ⅗× _Calamostachys_ 1× _Pachytesta_ ⅗× _Codonospermum_ ⅗× _Cordaicorpus_ ⅗× _Samaropsis_ ½× _Whittleseya_ 1× _Trigonocorpus_ ¼× _Holcospermum_ ⅗× _Neuropterocarpus_ ⅗× _Lepidostrobus_ ⅗× _Carpolithes_ ⅗× Southern Illinois [Illustration: uncaptioned] Lawrence County Near the Lawrence-Richland county line, not far from the towns of Berryville and Calhoun, there is an area rich in the fossil petrifactions called “coal balls” in which cellular structures of stems and roots generally are well preserved. Saline, Pope, and Johnson Counties