Flood waters carried boulders to where wash of hill emerges on small plain, Dorchester, Iowa, late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+Iowa+--+Allamakee+County+--+Dorchester">United States -- Iowa -- Allamakee County -- Dorchester</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Paleozoic+--+Ordovician">Paleozoic -- Ordovician</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Boulders">Boulders</a> Located at Dorchester, Twp. 100, R. V. Section 13. Calvin, S. (Samuel), 1840-1911 Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2005-08-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs; Dry collodion negatives 0036 2509 173611416 https://digital.lib.uiowa.edu/ Folded and fissured limestone, Brandon, Iowa, late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+Iowa+--+Buchanan+County+--+Brandon">United States -- Iowa -- Buchanan County -- Brandon</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Paleozoic+--+Devonian">Paleozoic -- Devonian</a> Calvin, S. (Samuel), 1840-1911 Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2005-08-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View relate article: http://cdm.lib.uiowa.edu/u?/digs,5668 jpeg 5 7 Still image Photographs; Dry collodion negatives cpc87.jpg 0087 1467 173611416 https://digital.lib.uiowa.edu/ Folded and tilted purple limestone, Hot Springs, S. D., late 1800s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+South+Dakota+--+Fall+River+County+--+Hot+Springs">United States -- South Dakota -- Fall River County -- Hot Springs</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Mesozoic+--+Triassic">Mesozoic -- Triassic</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Cliffs">Cliffs</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs 1916 173611416 https://digital.lib.uiowa.edu/ Folded beds of gypsum, Cascade, S.D., late 1890s or early 1800s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+South+Dakota+--+Fall+River+County+--+Cascade">United States -- South Dakota -- Fall River County -- Cascade</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Mesozoic+--+Triassic">Mesozoic -- Triassic</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Gypsum">Gypsum</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs; Dry collodion negatives 1937 2547 173611416 https://digital.lib.uiowa.edu/ Folded beds of limestone, Buffalo Gap, S.D., late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+South+Dakota+--+Fall+River+County+--+Buffalo+Gap">United States -- South Dakota -- Fall River County -- Buffalo Gap</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Mesozoic+--+Triassic">Mesozoic -- Triassic</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs 1941 173611416 https://digital.lib.uiowa.edu/ Folded Triassic limestone, Cascade, S.D., late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+South+Dakota+--+Fall+River+County+--+Cascade">United States -- South Dakota -- Fall River County -- Cascade</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=1900-1910">1900-1910</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Mesozoic+--+Triassic">Mesozoic -- Triassic</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Folded+Triassic+limestone">Folded Triassic limestone</a> Located near Cascade 12 miles South of Hot Springs, South Dakota. unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-09 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs; Dry collodion negatives 1943 0694 173611416 https://digital.lib.uiowa.edu/ Folding and crumpling of the Pierre Shales used by the cement company, Yankton, S.D., late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+South+Dakota+--+Yankton+County+--+Yankton">United States -- South Dakota -- Yankton County -- Yankton</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Mesozoic+--+Cretaceous">Mesozoic -- Cretaceous</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Pierre+Shales">Pierre Shales</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Quarrying">Quarrying</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-02 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs; Dry collodion negatives 0433 0688 173611416 https://digital.lib.uiowa.edu/ Folds, W. Va., late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+West+Virginia">United States -- West Virginia</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-02 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs; Dry collodion negatives 0751 0697 173611416 https://digital.lib.uiowa.edu/ Forest meets the prairie on William Brook's farm in Brookes Township, Iowa, late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+Iowa+--+Buena+Vista+County+--+Brookes+Township">United States -- Iowa -- Buena Vista County -- Brookes Township</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Cenozoic+--+Pleistocene">Cenozoic -- Pleistocene</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Meadows">Meadows</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Forests">Forests</a> unknown Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-03-02 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs jpeg 5 7 Still image Photographs 0651 173611416 https://digital.lib.uiowa.edu/ Fossil bearing beds of Upper Devonian or Hackberry clay banks, Iowa, late 1890s or early 1900s <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Geology">Geology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=United+States+--+Iowa+--+Cerro+Gordo+County">United States -- Iowa -- Cerro Gordo County</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=190-">190-</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Paleozoic+--+Devonian">Paleozoic -- Devonian</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Clay">Clay</a> Calvin, S. (Samuel), 1840-1911 Photographs scanned using Epson Expression 1680 scanner at 300 ppi, 8-bit greyscale. University of Iowa. Dept. of Geoscience. Paleontology Repository Contact Tiffany Adrain (tiffany-adrain@uiowa.edu) at The University of Iowa Paleontology Repository http://www.uiowa.edu/~geology/paleo 1895/1910 2006-02-17 This digital image may be used for educational purposes, as long as it is not altered in any way. No commercial reproduction or distribution of this file is permitted without permission. Calvin Geological Photographs This digital collection contains the geology-related images originally digitized for the Dept. of Geosciences' Calvin web exhibit: http://www.uiowa.edu/~calvin/calvin.htm . Calvin's images of Iowa City can be viewed in the Iowa City Town and Campus Scenes Digital Collection: http://digital.lib.uiowa.edu/ictcs View related article: http://cdm.lib.uiowa.edu/u?/digs,6642 jpeg 5 7 Still image Photographs; Dry collodion negatives 0118 1480 173611416 https://digital.lib.uiowa.edu/