Gneiss is a high grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures than schist. It is formed by the metamorphosis of granite, or sedimentary rock. Gneiss displays distinct foliation, representing alternating layers composed of different minerals.
Mountrail County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 7,673. Its county seat is Stanley.
The Edgefield County Town of Trenton was established with the arrival of the Charlotte, Columbia, and Augusta Railroad in the late 1860s. The area had long been a stagecoach way-station with the Piney Woods tavern offering beds and meals for travelers. George Washington is known to have dined here in 1791 while traveling between Augusta and Columbia.