Preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont
February 17, 2026
Citation Information
| Publication Year | 2026 |
|---|---|
| Title | Preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont |
| DOI | 10.3133/ofr20261062 |
| Authors | Peter M. Valley, Mercer Parker, Gregory J. Walsh, Randall C. Orndorff, Matt S. Walton, E. Allen Crider, |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Open-File Report |
| Series Number | 2026-1062 |
| Index ID | ofr20261062 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Florence Bascom Geoscience Center |
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Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont
The preliminary bedrock geologic map database of the 7.5-minute Port Henry quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley (fig. 1) on the published geologic map. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack...
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Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont Database for the preliminary bedrock geologic map of the Port Henry quadrangle, Essex County, New York, and Addison County, Vermont
The preliminary bedrock geologic map database of the 7.5-minute Port Henry quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley (fig. 1) on the published geologic map. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack...