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Seneca Stone Quarry - Fayette - Onondaga Limestone

Onondaga Limestone

Seneca Stone Quarry

Located in Seneca County
Image courtesy of Richard W. Allmendinger

Type: Quarry.

Features: Silurian/Devonian boundary; Oriskany-Schoharie interval; Onondaga Limestone;
Ash beds; Marcellus black shales; Cephalopod limestone; Thrust fault.

Feature Type: Stratigraphic.

Reference: NYS Geological Association Field Trip Guidebook, 72nd Annual Meeting 2000;
Anatomy of a Composite Sequence Boundary: The Silurian-Devonian Contact in Western NYS.
For online reference please visit -

Quadrangle: Romulus.

Reason for Designation: See the previously mentioned features.
Though this site changes as the quarry expands, much of it will be lost due to flooding when the quarry shuts down.
Visits are allowed with prior consent from owners. Beautiful thrust fault and fault-bend fold in the Onondaga Limestone, looking East.