Nebraska Geological Society


The AAPG Mid-Continent Section Convention

October 3-5, 2021 in Tulsa, OK



October 16-18, 2021

Northeast Nebraska

The field trip will provide an overview of the geology and hydrogeology of northeast Nebraska, geohazards, the groundwater quality and quantity issues unique to the region, and ongoing work in the region, including that utilizing remote sensing technology. This program will be comprised of an auto tour beginning on Saturday October 16 to visit the Spencer Dam site and several locations in Niobrara State Park. On Sunday, October 17 will see participants visiting Gavin's Point dam, the Bazile Creek Watershed Management project, as well as locations with outstanding geology and features from geological hazards. We will complete the trip on Monday, October 18 with opportunity to examine plenty of outcrop, a historical site with geological significance, and by examining older strata found in Ponca State Park and Homer, NE.

With the recent COVID resurgence, participants are expected to maintain social distance and take all precautions they feel necessary to be safe during the trip.

For trip details, visit the Events tab.

annual meeting program, September 16, 2021

"Discovery of a vast network of exhumed, Cenozoic channel bodies on the Great Plains"

Jesse Korus, Associate Professor, Conservation and Survey Division, UNL


Streams have shaped the Great Plains for the past 65 million years and their deposits host important aquifers, fossils, and geological resources. Despite the ubiquity of Cenozoic channel bodies, details on fluvial style, morphology, and drainage pattern have remained elusive. This talk presents the discovery a vast network of fluvial ridges on the Great Plains spanning Paleocene through Pliocene strata across portions of six states (CO, NE, WY, SD, ND, MT). These ridges are the relics of channel fills preserved as positive-relief landforms capped by sandstone, conglomerate, and gravel. Ridges are as much as 120 m in height, but most of them are subtle, a few meters high, and discernable only in high-resolution aerial photographs and LiDAR. New mapping of >1,000 linear km of ridges and the direct detection of channel body morphology shows that fluvial systems were diverse and spatially variable. Moreover, this work reveals that sediment dispersal systems and fluvial styles evolved dramatically during the formation of the Great Plains.



From October 18-20, 2020, NGS field trip participants spent two days traveling by motor caravan through central Nebraska with Paul Hanson, Shane Tucker and Doug Hallum to explore the geology and hydrogeology of the upper Platte, Lower South Platte and Lower North Platte rivers.

FREE DOWNLOAD OF FIELD GUIDE "Hydrogeology and Geology of the Lower North and South Platte Rivers of Nebraska: Nebraska Geological Society Field Trip 2020" is available at: 

Exploring the Pleistocene geology from Gothenburg to Moran Canyon. Paul Hanson talks about the alluvial fan exposed in the escarpment left by the canal excavation below Jeffrey Hydro.

Gathering to end the day with social distancing, liquid refreshment, and a bonfire.

Participants peer into the Lake McConaughy spillway.

Shane Tucker leads the tour into a more detailed look at Ash Hollow Formation outcrop.

Spring Creek headwater. 


Please join the Nebraska Geological Society in congratulating long-time Nebraska Geological Society Member and renowned Husker Geologist Priscilla Grew on being honored with the naming of a new mineral in the garnet supergroup - priscillagrewite!  See the article in the Nebraska Today using the link below.

News from UN-L

​Congratulations to Sheri Fritz, George Holmes Professor in the  UNL Department of Earth and Atmospheric Science on her highly prestigious election as a Fellow of the American Geophysical Union (AGU) !
Sheri has previously won national and international scientific medals and awards for her outstanding research using lake sediments as clues to past climate change. She has been honored for distinguished contributions to Quaternary paleolimnology and paleoclimatology, particularly for work at the intersection of ecology and geology relevant to climate change research and conservation. 


NGS charter member, our first Secretary, and current History committee member, Duane Eversoll, received the 2018 Maurice Kremer Groundwater Achievement Award.  Duane Eversoll was presented with the award at the Maurice Kremer Memorial Lecture on February 27, 2019 at 3:30 p.m. in the Hardin Hall Auditorium (room 107) on the University of Nebraska-Lincoln East Campus (33rd and Holdrege Streets, Lincoln). 

NGS 50th Anniversary Celebration

NGS head its 50th Anniversary celebration at Blue Blood Brewing Company in Lincoln on November 17, 2018, in spite of slick roads and snow swirling through town.  The celebration featured a tour of Robber's Cave with local historian and author Joel Green.  Joe's book; "Robber's Cave: truths, Legends, Recollection" is available for purchase at  Special thanks to Karen Griffin for sharing photos!

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