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Dubuque Formation
Technical Report : Illinois Natural Areas Inventory
Deposition of the Cambrian Eau Claire Formation, Wisconsin: Hydrostratigraphic Implications of Fine-Grained Cratonic Sandstones
UPPER IOWA RIVER WATERSHED: PHASE 4: Ridgeway 7.5' Quadrangle
Bedrock Geology of Franklin Grove Quadrangle
Stratigraphy of the Dubuque Formation (Upper Ordovician) in Iowa
Paleozoic Lithostratigraphic Nomenclature for Minnesota
The Decorah Structure, Northeastern Iowa: Geology and Evidence for Formation by Meteorite Impact
Designation of Principal Water-Supply Aquifers in Minnesota
Geologic Mapping of the Upper Iowa River Watershed
Evolutionary Roots of the Conodonts with Increased Number of Elements in the Apparatus Jerzy Dzik Instytut Paleobiologii PAN, Twarda 51/55, 00-818 Warszawa, Poland
State of South Dakota M
Pander Society Newsletter
Facets of the Ordovician Geology of the Upper Mississippi Valley Region
Geologic Mapping for Water Quality Projects in the Upper Iowa River Watershed
Ostracoda of the Dubuque and Maquoketa Formations of Minnesota and Northern Iowa J
Deep Stratigraphic Test Well Near Hollandale, Minnesota
I I I I I I I I I I I I I I I I I I I I I I
Bedrock Geology AS RECOMMENDED by the LEGISLATIVE-CITIZEN COMMISSION on MINNESOTA RESOURCES, and the MINNESOTA LEGACY AMENDMENT's CLEAN WATER FUND
Top View
Ordovician Karst of Southeast Minnesota Field Trip Guidebook
GEOLOGIC MAPPING of the UPPER IOWA RIVER WATERSHED Phase 2: Freeport and Bluffton 7.5’ Quadrangles
Hydrogeology of the Cambrian-Ordovician Aquifer System in the Northern Midwest, United States
Ordovician) in Northern Illinois
Depositional Environments and Sequence Stratigraphy of Upper Ordovician Epicontinental Deep Water Deposits, Eastern Iowa and Southern Minnesota
The Ordovician
The Seventh Baltic Stratigraphical Conference
The Platteville and Galena Groups in Northern Illinois
Plate B: Olmsted County Aggregate Resources, Crushed Stone Potential
The Ordovician Exposed
Geology of the Freeport Quadrangle, Illinois