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HARRISBURG AREA GEOLOGICAL SOCIETY

The Harrisburg Area Geological Society (HAGS) is a vibrant organization dedicated to advancing geologic knowledge and fostering fellowship among individuals interested in the Earth sciences. Through engaging monthly meetings, we explore a wide range of captivating geologic topics, covering tectonics, mineralogy, sedimentology, paleontology, geophysics, geochemistry, and more. Our inclusive and welcoming community encourages anyone with an interest in geology to join us, connecting with fellow enthusiasts and expanding their understanding of the Earth's complexities. HAGS is where geologic exploration and knowledge-sharing thrive, inspiring a deeper appreciation for our remarkable planet.

HAGS OFFICERS

Al Guiseppe
Amy Randolph

Vice President & Secretary

secretaryhags@gmail.com

Mike Meyer

HAGS MEETING DETAILS

HAGS FIELD TRIP GUIDEBOOKS

HAGS field trip guidebooks are available for download below. Hardcopy guidebooks are available via the Pennsylvania Geological Survey Library.

2013

Some Geological Aspects of the North Side of the Cumberland Valley in Cumberland County

William D. Sevon

2012

Shermans Creek from Dellville to Duncannon, Perry County, PA

William Roman

2011

Geology and Geomorphology of the South Mountain Area, Cumberland and Franklin Counties, PA

Noel Potter, Jr. and William D. Sevon

2011

Halloween Limestone Adventure - Limestones of Snyder and Centre Counties, PA

William E. Kochanov and Rose-Anna Behr

2002

Anthracite Region Field Trip

James E. Baxter and Keith Brady

2000

Geology of the Kishacoquillas Valley and vicinity, Mifflin County, Pennsylvania

Michael A. Knight and William M. Roman

1999

The Cove Syncline by Canoe

William M. Roman and Michael A. Knight

1998

Geomorphology in the Northern Cumberland Valley, PA, Including the Carlisle Deluge of 1779

Noel Potter, Jr. Donald Hartman, Helen Delano, and William D. Sevon

1997

Notes on the Hamburg Klippe: Biostratigraphy, Ash Layers, Olistostromes, and �Exotics�

G. Robert Ganis

1996

Pseudo-Morainic Topography of the Allentown Area of Eastern Pennsylvania

Duane D. Braun and William E. Kochanov

1995

Geology of the Rohrer and Binkley & Ober Quarries near East Petersburg, Lancaster Co, PA

Richard P. Nickelson, Donald U. Wise, Richard Clouser

1994

Geology of the Lebanon Valley and Western End of the Reading Prong

Gary Fleeger, William Jordan, William E. Kochanov, and Charles Scharnberger

1993

South Mountain and the Triassic in Adams County, Pennsylvania

Raymond Britcher

1992

Paleozoic Geology of the Paw Paw?Hancock Area of Maryland and West Virginia

Marcus M. Key and Noel Potter, Jr.

1991

The Ridge and Valley Physiographic Province and the East Broad Top Railroad

William D. Sevon

1989

The Rivers and Valleys of Pennsylvania, Then and Now

William D. Sevon, Duane D. Braun, and Edward J. Ciolkosz

1989

Karst Development and Environmental Geology in the Carbonate Rocks of the Lehigh and Lebanon Valleys

William E. Kochanov

1988

The Geology of the Lower Susquehanna River Area, A New Look at Some Old Answers

Glenn H. Thompson

1987

Lower Jurassic Diabase and the Battle of Gettysburg

D. T. Hoff, J. R. Mowery, and G. Robert Ganis

1986

Selected Geology of Dauphin and Northumberland Counties, Pennsylvania

W. D. Sevon, W. E. Edmunds, G. Robert Ganis, and J. P. Wilshusen

1985

Pennsylvania�s Polygenetic Landscape

William D. Sevon

1984

Stratigraphy, Structural Style, and Economic Geology of the York?Hanover Valley

G. Robert Ganis and David Hopkins

1983

Susquehanna River Valley Harrisburg to Wrightsville

J. Ronald Mowery

1982

Geology in the South Mountain Area, Pennsylvania

Noel Potter, Jr.

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