Field Notebook: Minnesota, Wisconsin, Iowa, Illinois, Pennsylvania
Page 14
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
ascends from the river, upon a large part of the higher strata. Fossil abundant in the usual layers. Farther up the river above Fulton Center the lower strata crown the bluff with weather-worn outline. Near the crater edge the St Peter comes in.