Piedmont (plateau)
Videos
The Piedmont is a plateau region located in the Eastern United States. It is situated between the Atlantic Plain and the Blue Ridge Mountains, stretching from New York in the north to central Alabama
The Piedmont Plateau, looking east from Rocky Ridge in Maryland, c. 1898
The James River winds its way among rolling Piedmont hills in central Virginia, though most hills in the Piedmont region are smaller than these.
Baltimore Gneiss
Videos
The Baltimore Gneiss is a Precambrian geological formation in the Piedmont region of Maryland, Pennsylvania, and Delaware.
Photomicrograph of Baltimore Gneiss
Outcrop of Baltimore Gneiss along the Patapsco River, Carroll County
Illustration of an inclusion of the Baltimore Gneiss within the Woodstock Quartz Monzonite
The Grace Methodist Episcopal Church in Baltimore City, an example of a building built in part from "Falls Road blue gneiss."