Three Mondays in April and May, 4/25, 5/9, and 5/16/16 this writer explored a small privately owned quarry north of Morrisville, NY., Madison County. Exposed was the Mottsville Member of the Oatkacreek Formation which represents the uppermost part of the Marcellus Shale which is the lowermost part of the Hamilton Group (Middle Devonian).
A pic of the site showing an area excavated by this writer: