GEOLEX database Geologic Unit: Crown Point Usage: Crown Point Limestone of Chazy Group (VT*,NY*) Crown Point Member of Chazy Limestone (VT) Age: Ordovician, Middle* Geologic Province: New England province* Appalachian basin* Areal Extent: NY* VT* Type Locality: Type area: Derivation of name not stated by author, but probably named from exposures at or near Crown Point, Essex Co., NY. Unit Name History: Named (Cushing, 1905). Extended into VT and age modified (Cady, 1945). Revised to member of Chazy limestone (Doll and others, 1961). Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov). Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys. "No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses (). Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]). U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html Database project personnel Last modified: 7-Jan-2007