Harrisburg Area Geological Society

The Harrisburg Area Geological Society (HAGS) is a professional organization focused on the Earth Sciences in central Pennsylvania. HAGS runs field trips, outreach, and monthly speaker series. This channel primarily shares HAGS meetings, though other association activities may also show up.

A Geologist Goes to Antarctica (11-13-25) Dr. Charles E. Miller, Jr.

A Geologist Goes to Antarctica (11-13-25) Dr. Charles E. Miller, Jr.
A Holistic Approach to Provenance and Source Interpretations (10/09/2025) Andrew Spatz

A Holistic Approach to Provenance and Source Interpretations (10/09/2025) Andrew Spatz
Improving Public Understanding in the Science of Geology (09/11/25) Dr. Daniel E. Snowden

Improving Public Understanding in the Science of Geology (09/11/25) Dr. Daniel E. Snowden
How The River Got Its Groove: Glacial Assembly & Incision of the Allegheny River Jonathan Wallace MS

How The River Got Its Groove: Glacial Assembly & Incision of the Allegheny River Jonathan Wallace MS
Late Paleozoic Stratigraphy & Sedimentary Environments - S. Central PA (3/13/25) Christopher Oest

Late Paleozoic Stratigraphy & Sedimentary Environments - S. Central PA (3/13/25) Christopher Oest
Challenges to interpreting Devonian terrestrial environments, (11/14/24), Dr. Dennis Terry

Challenges to interpreting Devonian terrestrial environments, (11/14/24), Dr. Dennis Terry
Geology of Fallingwater, Wright’s masterpiece of organic design (10/10/2024) Fred Zelt, PhD

Geology of Fallingwater, Wright’s masterpiece of organic design (10/10/2024) Fred Zelt, PhD
Sustainable Ecotourism in Belize: A delicate balance by Kyle Rybacki, PhD. (09/12/2024)

Sustainable Ecotourism in Belize: A delicate balance by Kyle Rybacki, PhD. (09/12/2024)
Who was Atreus Wanner? Jeri Jones (05/09/24)

Who was Atreus Wanner? Jeri Jones (05/09/24)
The “Haystacks” - A Devonian Silcrete, Brett McLaurin PhD (04/18/24)

The “Haystacks” - A Devonian Silcrete, Brett McLaurin PhD (04/18/24)
Reconsidering the Ordovician in Central Pennsylvania, Jesse Thornburg PhD (3/14/24)

Reconsidering the Ordovician in Central Pennsylvania, Jesse Thornburg PhD (3/14/24)
3D Models, Big Data & Statistical Analysis: A Brave New World for the PA Geological Survey (2/08/24)

3D Models, Big Data & Statistical Analysis: A Brave New World for the PA Geological Survey (2/08/24)
Applied Modern Mapping and Geologic Data Collection Techniques, Bill Stephens, P.G. (12/14/2023)

Applied Modern Mapping and Geologic Data Collection Techniques, Bill Stephens, P.G. (12/14/2023)
Investigating the Geology of PA’s Riverbanks: Bluffs, Terraces and Karst Features (11/09/2023)

Investigating the Geology of PA’s Riverbanks: Bluffs, Terraces and Karst Features (11/09/2023)
Expanding Reality and ENGAGEment: Developing VR Geoscience Experiences (10/12/2023)

Expanding Reality and ENGAGEment: Developing VR Geoscience Experiences (10/12/2023)
Constraining vertical range of the SE Laurentide Ice Sheet - Aaron M. Barth PhD (9/14/23)

Constraining vertical range of the SE Laurentide Ice Sheet - Aaron M. Barth PhD (9/14/23)
Mississippian fossil plants from the eastern USA (HAGS meeting May 11, 2023): James R. Jennings, PhD

Mississippian fossil plants from the eastern USA (HAGS meeting May 11, 2023): James R. Jennings, PhD
Applying non-traditional stable isotopes to traditional geologic problems (4/13/23 ) Adam Ianno PhD

Applying non-traditional stable isotopes to traditional geologic problems (4/13/23 ) Adam Ianno PhD
A Modernized Stratigraphic Framework: Revising/Reconciling Strat Across PA (3/9/23) Hailey Filipelli

A Modernized Stratigraphic Framework: Revising/Reconciling Strat Across PA (3/9/23) Hailey Filipelli
Geology and History of the Chapada dos Guimaraes Geopark Region, Brazil (2/9/23) Jay Parrish PhD

Geology and History of the Chapada dos Guimaraes Geopark Region, Brazil (2/9/23) Jay Parrish PhD
Misleading Potentiometric Analysis from Groundwater Hydrographs (4/21/22) Mark Eisner, P.G.

Misleading Potentiometric Analysis from Groundwater Hydrographs (4/21/22) Mark Eisner, P.G.
Factors in groundwater quality in the Marcellus of PA (5/12/22) Charles Cravotta, III, P.G. PhD

Factors in groundwater quality in the Marcellus of PA (5/12/22) Charles Cravotta, III, P.G. PhD
Benefits of a Budget-Conscious Drone Program (11/10/22) Craig Ebersole, P.G.

Benefits of a Budget-Conscious Drone Program (11/10/22) Craig Ebersole, P.G.
Deep dive of a Silurian reef in Central PA: Exploration and facies analysis (12/8/22) Marissa Loftus

Deep dive of a Silurian reef in Central PA: Exploration and facies analysis (12/8/22) Marissa Loftus
What’s set in stone? From outcrop observations to geologic mapping (10/13/22) Alan Pitts, PhD

What’s set in stone? From outcrop observations to geologic mapping (10/13/22) Alan Pitts, PhD
Water Under the Bridge: A Practical Introduction to Hydrography in PA (9/8/22) Ellen Fehrs

Water Under the Bridge: A Practical Introduction to Hydrography in PA (9/8/22) Ellen Fehrs
The Hydrogeology of the Rosmhvalanes Peninsula, Iceland (10/03/2022) Kent Littlefield, P.G.

The Hydrogeology of the Rosmhvalanes Peninsula, Iceland (10/03/2022) Kent Littlefield, P.G.
Applied Paleontology (02/10/2022) Charles E. Miller, Jr. PhD

Applied Paleontology (02/10/2022) Charles E. Miller, Jr. PhD