- Mount Rogers
Mount Rogers in winter
Elevation 5,729 ft (1,746 m) Prominence 2,469 ft (753 m)  Location Location Grayson / Smyth counties, Virginia, United States Range Blue Ridge Mountains Coordinates Coordinates: Topo map USGS Whitetop Mountain Climbing Easiest route Hike via Appalachian Trail spur
Mount Rogers is the highest natural point in the state of Virginia, USA, with a summit elevation of 5,729 feet (1,746 m) above mean sea level. It lies in Grayson County and Smyth County, Virginia, about 6.45 miles (10.38 km) WSW of Troutdale, Virginia, within the Mount Rogers National Recreation Area and Jefferson National Forest.
The mountain is named for William Barton Rogers, a Virginian educated at the College of William & Mary, who taught at William & Mary and the University of Virginia, became Virginia's first State Geologist, and went on to found the Massachusetts Institute of Technology.
The summit is most easily accessed from Grayson Highlands State Park by following the Appalachian Trail southbound for 3.5 miles (5.6 km) to a blue-blazed trail leading to the summit, which is covered by trees and marked with four National Geodetic Survey triangulation station disks; a standard station disk marked with an equilateral triangle and three standard reference disks marked with arrows pointing towards the station disk. One reference disk has been obscured by dense overgrowth. Because the Appalachian Trail passes within a half mile of the summit, the area is especially popular with hikers.
The Mount Rogers area contains a unique record of the geohistory of Virginia. There is evidence from the rocks that volcanoes were part of the landscape. Roughly 750 million years ago, rift-related (divergent) volcanoes erupted along the axis of what later became the Appalachians, and one remnant of that volcanic zone, with its volcanic rocks, still can be seen at Mount Rogers. Massive rhyolite lava flows erupted at the mountain during the Precambrian rifting event. Mount Rogers is also the only place in Virginia that preserves evidence of ancient Proterozoic glaciation.
Mount Rogers is the northernmost habitat of the high-altitude Southern Appalachian spruce-fir forests, which are found in only five other locations in the United States: the Great Smoky Mountains, the Black Mountains, the Great Balsam Mountains, Grandfather Mountain, and Roan Mountain. This forest type is one of the few remaining habitats of the Fraser fir, which is only found at high elevations, typically above 5,500 feet (1,700 m), in the southern Appalachian Mountains.
These forests have suffered recent declines due to infestations by the balsam woolly adelgid (Adelges piceae), a non-native insect that originated in Europe. It first infested Mount Rogers in 1962 and the entire U.S. population of Fraser firs suffered a 67% mortality rate since, although Mount Rogers was not affected as severely as other locations.
Some researchers have proposed that air pollution in the form of nitrogen and sulfur compounds originating from power plants has been a source of stress to the Fraser firs, resulting in an increased susceptibility to the balsam woolly adelgid, but this relationship has not been confirmed.
- Mount Rogers National Recreation Area
- Whitetop Mountain
- Reddish Knob
- High Knob
- List of tallest mountains of U.S. states
- ^ "Mount Rogers, Virginia". Peakbagger.com. http://www.peakbagger.com/peak.aspx?pid=7796. Retrieved 2008-04-20.
- ^ http://web.wm.edu/geology/virginia/provinces/Blueridge/mtrogers.html
- ^ http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=FZ2155
- ^ http://www.runet.edu/~fldsch/RUFieldschool/fieldtrips/MountRogers/MRIntroduction/MtRogersIntro.html Introduction to Mount Rogers
- ^ a b c Potter, Kevin M., Frampton, John, and Sidebottom, Jill. "Impacts of balsam woolly adelgid on the southern Appalachian spruce-fir ecosystem and the North Carolina Christmas tree industry". Third Symposium on Hemlock Woolly Adelgid in the Eastern United States, 2005
- ^ Newton, Leslie P., and Hain, Fred P. "Host interactions of the balsam woolly adelgid". Third Symposium on Hemlock Woolly Adelgid in the United States, 2005.
U.S. State Highest Natural Points
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Look at other dictionaries:
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