Parnell Knob

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Parnell Knob
Parnell Knob.jpg
Parnell Knob
Highest point
Elevation2,021 ft (616 m)
LocationFranklin County, Pennsylvania, U.S.
Parent rangeAppalachian Mountains
Topo mapUSGS Saint Thomas(PA) Quadrangle

Parnell Knob is a mountain in the Ridge and Valley Appalachians region of south central Pennsylvania. This knob rises above the village of St. Thomas, where Front Mountain and Broad mountain come together. It is a feature sculptured by the hard dense Tuscarora quartzite of the Silurian age. Parnell Knob is conspicuous in that it rises abruptly above the relatively level Great Appalachian Valley.


Alan R. Geyer (1979) "Outstanding Geologic Features of Pennsylvania", Geological Survey of Pennsylvania

  • "Parnell Knob on USGS topographic map".

Coordinates: 39°55′05″N 77°51′40″W / 39.91792°N 77.86118°W / 39.91792; -77.86118