Hortonville Formation - limestone

Near base contains bluish-gray, granular, smooth-weathering fossiliferous limestone. Unit mapped west of the Taconic allochthon, and northwest of the Sudbury slice. Vermont Valley sequence and Middlebury synclinorium (above the Orwell and Champlain thrusts).
State Vermont
Name Hortonville Formation - limestone
Geologic age Upper Ordovician
Lithologic constituents
Major
Sedimentary > Carbonate > LimestoneBluish-gray, granular, smooth-weathering fossiliferous limestone.
References
NGMDB product
Counties Addison - Rutland