Russia Member of Denley Limestone (Trenton Group) is divided into Wolf Hollow, Brayton Corners, and High Falls divisions. Wolf Hollow division of the Russia Member includes nodular calcilutites to wackestones. It is marked by intervals of poorly bedded, conspicuously nodular, muddy carbonate. Steinkerns and trilobites abundant. At base, North Gage Road bed (new, informal), a bioturbated packstone, forms a 0.2 m ledge in its type locality at Rathbun Brook. From Trenton Falls to Rathbun Brook, the Wolf Hollow division retains an approximate thickness of 16 m of "cyclical progressions of tabularly to nodularly-bedded limestones." At Wolf Hollow Creek, strata are only 5.5 m. Overlies Poland Member of Denley Limestone. Age is Middle Ordovician.
Source: GNU records (USGS DDS-6; Reston GNULEX).
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