Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
5/6/95.
Co Rd 2,34 to Preston, then Iowa Hwy 64 to
Maguobeta
Then [illegible] 61 north to Dubuque
5/6/95/7:30 SCB parry calcite from Dubuque
Fm
Opposite our motel, Dubuque, Iowa
Magnokita Drive + US 61. Eldg construct site (Called locally [illegible])
Heavy equipment businesses
Extensive weathered shallow slope with 1 float of iron-replaced basal
Ironstone in upper/middle part to dark brownish grey at bottom (6'-8' thick) overlain by 3-4 ft of lighter grey shale.
There was evidence of fossiliferous material (not recognizable fossils)