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All images, unless otherwise noted are by Gary Heinzel
South pit panorama showing glacial drift, Cerro Gordo Member and Juniper Hill Member of the Devonian (Frasnian) Lime Creek Formation at Rockford, Iowa
image 020*
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| image 021*
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| image 022
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| image 017
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| image 018
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| The Juniper Hill Member (gray) is generally unfossiliferous - we collected in the strip face tailings of the Cerro Gordo Member elsewhere in the pit area - no digging, beautiful specimens easily picked up on the rain-washed slopes
image: 019*
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Young kids are built close to the ground and have good eyesight - the rest of us need to get a little closer to the work area...
image 012*
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| image 006*
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| image 001*
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| image 005*
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| With temperatures barely 50 F and a NNW wind gusting to 30 mph, over the top of the slope, this was the preferred approach to fossil hunting today.
image 014
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| image 013*
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View of an undisturbed wall (left side of picture) in middle pit area looking (view to the east) - note the argillaceous limestone layering near the top, and the typical calcareous shale (containing intervals of nodular shaley limestone) which yields thousands of fossils and makes the Rockford pit one of the premier Paleozoic fossil-collecting places in the United States.
image 015*
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| another view showing fired-red brick/tile debris from the old kiln operations.
image 016*
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| image 007*
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| image 008*
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| The kiln debris makes an easy climb to the top
image 004*
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| A great day: for these inveterate, invertebrate fossil collectors from the Cannon Valley Elder Collegium (Northfield, Minnesota) class called "What's This Fossil Doing In My Backyard", it just doesn't get much better then this...
image 002*
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Sharon, Dean, Nancy and Marion
image 009*
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| quick switch...Sharon, Nancy, Marion and Gary
image 011*
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| Largest specimen of the day! The glacial erratic in Boulder Park, downtown Nora Springs, Iowa
Image 025*
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| Rockford fossil culls from about 300 spec
image: Kjerland 01*
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| Rockford fossil quick sort - 34 species incl: brachiopods(16), corals(3), gastropods(1), crinoids(?), pelecypods(2), bryozoans(6), stromatoporoids(1) plus(in residue): scolecodont, tentaculites, conodont, ?charophyte?
image: Kjerland 02*
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| Find Of The Day?: Colonial coral head: Pacyphyllum woodmani
9 cm across.
For a detailed guide to Rockford Fossils go to 'Collections' on this website and look under 'Devonian Fossils'.
image: Kjerland 03*
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