Jacks Mountain
| Jacks Mountain | |
|---|---|
Jacks Mountain highpoint
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| Highest point | |
| Elevation | 2,321 ft (707 m) |
| Coordinates | 40°37′43″N 77°37′53″W / 40.62861°N 77.63139°W |
| Geography | |
| Location | Pennsylvania, U.S. |
| Parent range | Appalachian Mountains |
| Topo map | USGS Barrville (PA) Quadrangle |
Jacks Mountain is a stratigraphic ridge in central Pennsylvania, United States, trending southeast of the Stone Mountain ridge and Jacks Mountain Anticline. The ridge line separates Kishacoquillas Valley from the Ferguson and Dry Valleys. Jacks Mountain lies in Mifflin, Huntingdon, Snyder, and Union Counties, and the ridge line forms part of the border between Huntingdon and Mifflin Counties.
It is named for Jack Armstrong, an 18th-century fur trader. In the autumn of 1743, Armstrong confiscated the horse of Mushemeelin, a Delaware Indian from Shamokin who was in debt to Armstrong. Mushemeelin and two Delaware companions tracked Armstrong to the Juniata River narrows and, in 1744, killed the trader and his two servants. The site was thereafter known as "Jack's Narrows".
U.S. Route 22 (US 22), the William Penn Highway, and the former Pennsylvania Railroad Main Line, now the Norfolk Southern Railway's Pittsburgh Line, follow the Juniata River through the Jacks Narrows water gap between Mapleton and Mount Union. U.S. Route 322 and the former Milroy Branch of the Pennsylvania Railroad pass through the Mann Narrows Water Gap along the Kishacoquillas Creek near Reedsville.
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