Latitude: 40°36'17"N
Longitude: 74°32'11"W
Ref.: Rocks & Min.:60:214. An aggregate quarry in the Preakness (Second Watchung) Basalt. This quarry, on the boundary between Bridgewater and Warren, was small and mostly in massive columnar basalt. It operated from the 1960's to the early 1980's by Dock Watch Quarry Pit, Inc. This company later morphed into the Millington Quarry Co. Alhough the basal contact of the Preakness was exposed near the end of the quarry's operation, little, if anything, of mineralogical interest was present.
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