Blue Mountain (Pennsylvania): Difference between revisions
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{{hatnote|Not to be confused with [[Blue Ridge Mountain, Pennsylvania|Blue Ridge Mountain]] (41.3628,-076.0535), a summit, also in Pennsylvania but limited to [[Wyoming County, Pennsylvania|Wyoming County]].<ref name=gnis-blue-ridge>{{cite gnis | id = 1169893 | name = Blue Ridge Mountain |
{{hatnote|Not to be confused with [[Blue Ridge Mountain, Pennsylvania|Blue Ridge Mountain]] (41.3628,-076.0535), a summit, also in Pennsylvania but limited to [[Wyoming County, Pennsylvania|Wyoming County]].<ref name=gnis-blue-ridge>{{cite gnis | id = 1169893 | name = Blue Ridge Mountain |
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| quote=Blue Ridge Mountain 1169893 Summit Wyoming PA 413628N 0760535W 1171 Meshoppen - 02-AUG-1979 | access-date = 2017-03-29 }}</ref>}} |
| quote=Blue Ridge Mountain 1169893 Summit Wyoming PA 413628N 0760535W 1171 Meshoppen - 02-AUG-1979 | access-date = 2017-03-29 }}</ref>}} |
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{{for|The mountain ranges in Australia|Blue Mountains (New South Wales)}} |
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{{Infobox mountain |
{{Infobox mountain |
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| name= Blue Mountain<ref name="gnis"> |
| name= Blue Mountain<ref name="gnis">{{cite gnis | id = 1193708 | name = Blue Mountain | access-date = 2009-02-07 |
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| quote= 1193708 Name: Blue Mountain 40.1245315 -77.6663793 400728N 0773959W Roxbury |
| quote= 1193708 Name: Blue Mountain 40.1245315 -77.6663793 400728N 0773959W Roxbury |
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}}</ref> |
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| subdivision1= [[Pennsylvania]] |
| subdivision1= [[Pennsylvania]] |
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| borders_on= {{ |
| borders_on= {{hlist|[[Ridge-and-Valley Appalachians]]|[[Great Appalachian Valley]]}} |
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| geology= {{ |
| geology= {{hlist|[[Tuscarora Formation]]|[[Shawangunk Formation]]; [[sedimentary rock|sedimentary]]}} |
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| age= [[Silurian]] |
| age= [[Silurian]] |
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| orogeny= [[Appalachian Mountains]] |
| orogeny= [[Appalachian Mountains]] |
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'''Blue Mountain''', '''Blue Mountain Ridge''', or the '''Blue Mountains of Pennsylvania''' is a ridge of the [[Appalachian Mountains]] in eastern [[Pennsylvania]]. Forming the southern and eastern edge of the [[Ridge-and-Valley Appalachians]] physiographic province in Pennsylvania, Blue Mountain extends {{convert|150|mi}} from the [[Delaware Water Gap]] on the [[New Jersey]] border in the east to Big Gap in [[Franklin County, Pennsylvania|Franklin County]] in south-central Pennsylvania at its southwestern end. |
'''Blue Mountain''', '''Blue Mountain Ridge''', or the '''Blue Mountains of Pennsylvania''' is a ridge of the [[Appalachian Mountains]] in eastern [[Pennsylvania]]. Forming the southern and eastern edge of the [[Ridge-and-Valley Appalachians]] physiographic province in Pennsylvania, Blue Mountain extends {{convert|150|mi}} from the [[Delaware Water Gap]] on the [[New Jersey]] border in the east to Big Gap in [[Franklin County, Pennsylvania|Franklin County]] in south-central Pennsylvania at its southwestern end. |
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Views of Blue Mountain dominate the southern tier of most eastern and central Pennsylvania counties, providing an ever-visible backdrop cutting across the northern or western horizon. Most transport corridors and road beds piercing the barrier necessarily pass through large [[water gap]]s, including (west to east) |
Views of Blue Mountain dominate the southern tier of most eastern and central Pennsylvania counties, providing an ever-visible backdrop cutting across the northern or western horizon. Most transport corridors and road beds piercing the barrier necessarily pass through large [[water gap]]s, including (west to east) the [[Susquehanna River|Susquehanna]], [[Schuylkill River|Schuylkill]], [[Lehigh River|Lehigh]] and [[Delaware River]] valleys or [[wind gap]]s, low gaps in the ridge caused by ancient watercourses. The [[barrier ridge]] forms a distinct boundary between a number of Pennsylvania's geographical and cultural regions. |
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To the south of the [[Susquehanna River]] gap in the south-central part of the state is the [[Cumberland Valley]], part of the [[Great Appalachian Valley]]; to its northwest side are the southern reaches of the [[Susquehanna Valley]] with picturesque streams channeling travel corridors deep into and over the central and western mountains and valleys—the heartland interior counties of Pennsylvania; along the [[Main Branch Susquehanna]], the valleys also lead into the [[Coal Region]] of northeast Pennsylvania, the [[Wyoming Valley]], and the distant [[Pocono Mountains|Poconos]]. To the south of Blue Mountain lies the [[Harrisburg–Carlisle metropolitan statistical area|Capital Region]] of [[Harrisburg, Pennsylvania|Harrisburg]] and nearby communities, the rich farming country of the [[Lebanon Valley]] and [[Pennsylvania Dutch Country]] of [[York County, Pennsylvania|York]] and [[Lancaster County, Pennsylvania|Lancaster]] counties, the lower half of the [[Lehigh Valley]], and the lower [[Delaware Valley]], both of which extend north through water gaps beyond the ridgeline. |
To the south of the [[Susquehanna River]] gap in the south-central part of the state is the [[Cumberland Valley]], part of the [[Great Appalachian Valley]]; to its northwest side are the southern reaches of the [[Susquehanna Valley]] with picturesque streams channeling travel corridors deep into and over the central and western mountains and valleys—the heartland interior counties of Pennsylvania; along the [[Main Branch Susquehanna]], the valleys also lead into the [[Coal Region]] of northeast Pennsylvania, the [[Wyoming Valley]], and the distant [[Pocono Mountains|Poconos]]. To the south of Blue Mountain lies the [[Harrisburg–Carlisle metropolitan statistical area|Capital Region]] of [[Harrisburg, Pennsylvania|Harrisburg]] and nearby communities, the rich farming country of the [[Lebanon Valley]] and [[Pennsylvania Dutch Country]] of [[York County, Pennsylvania|York]] and [[Lancaster County, Pennsylvania|Lancaster]] counties, the lower half of the [[Lehigh Valley]], and the lower [[Delaware Valley]], both of which extend north through water gaps beyond the ridgeline. |
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==Geography== |
==Geography== |
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[[File:Sunday Drive (4) (12735489134).jpg|thumb|Blue Mountain in [[Moore Township |
[[File:Sunday Drive (4) (12735489134).jpg|thumb|Blue Mountain in [[Moore Township, Pennsylvania|Moore Township]] in the [[Lehigh Valley]] region of eastern [[Pennsylvania]] in February 2014]] |
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The ridge of Blue Mountain runs for {{convert|150|mi}} through [[Pennsylvania]], reaching an elevation of {{convert|2270|ft|m}} above sea level just north of the [[Pennsylvania Turnpike]], near the borough of [[Newburg, Cumberland County, Pennsylvania|Newburg]]. Most of the ridgecrest, however, only reaches between {{convert|1400|and|1700|ft|m}} in elevation. The mountain's width varies from {{convert|1|to|3|mi|km}}. |
The ridge of Blue Mountain runs for {{convert|150|mi}} through [[Pennsylvania]], reaching an elevation of {{convert|2270|ft|m}} above sea level just north of the [[Pennsylvania Turnpike]], near the borough of [[Newburg, Cumberland County, Pennsylvania|Newburg]]. Most of the ridgecrest, however, only reaches between {{convert|1400|and|1700|ft|m}} in elevation. The mountain's width varies from {{convert|1|to|3|mi|km}}. |
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{{Delaware Water Gap National Recreation Area}} |
{{Delaware Water Gap National Recreation Area}} |
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{{Lehigh Valley}} |
{{Lehigh Valley}} |
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{{Authority control}} |
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{{DEFAULTSORT:Blue Mountain Ridge}} |
{{DEFAULTSORT:Blue Mountain Ridge}} |
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Latest revision as of 22:10, 3 November 2024
| Blue Mountain[2] | |
|---|---|
Kittatinny Mountain (and nine others:
| |
.jpg) The "Great Wall" of the Blue Mountain in Pennsylvania in February 2008 | |
| Highest point | |
| Peak | Clarks Knob in Franklin County, Pennsylvania 2,320 feet (710 m)[4] |
| Elevation | 1,129 ft (344 m)[2] |
| Coordinates | 40°07′28″N 77°39′59″W / 40.12444°N 77.66639°W |
| Dimensions | |
| Length | 150 mi (240 km) northeast-southwest to SSW 150 miles (240 km) (direct aerial) 255 miles (410 km) trace of ridgeline, including loops back[5] width = varies along chain's length |
| Geography | |
 | |
| Country | United States |
| State | Pennsylvania |
| Borders on | |
| Geology | |
| Orogeny | Appalachian Mountains |
| Rock age | Silurian |
| Rock types | |
Blue Mountain, Blue Mountain Ridge, or the Blue Mountains of Pennsylvania is a ridge of the Appalachian Mountains in eastern Pennsylvania. Forming the southern and eastern edge of the Ridge-and-Valley Appalachians physiographic province in Pennsylvania, Blue Mountain extends 150 miles (240 km) from the Delaware Water Gap on the New Jersey border in the east to Big Gap in Franklin County in south-central Pennsylvania at its southwestern end.
Views of Blue Mountain dominate the southern tier of most eastern and central Pennsylvania counties, providing an ever-visible backdrop cutting across the northern or western horizon. Most transport corridors and road beds piercing the barrier necessarily pass through large water gaps, including (west to east) the Susquehanna, Schuylkill, Lehigh and Delaware River valleys or wind gaps, low gaps in the ridge caused by ancient watercourses. The barrier ridge forms a distinct boundary between a number of Pennsylvania's geographical and cultural regions.
To the south of the Susquehanna River gap in the south-central part of the state is the Cumberland Valley, part of the Great Appalachian Valley; to its northwest side are the southern reaches of the Susquehanna Valley with picturesque streams channeling travel corridors deep into and over the central and western mountains and valleys—the heartland interior counties of Pennsylvania; along the Main Branch Susquehanna, the valleys also lead into the Coal Region of northeast Pennsylvania, the Wyoming Valley, and the distant Poconos. To the south of Blue Mountain lies the Capital Region of Harrisburg and nearby communities, the rich farming country of the Lebanon Valley and Pennsylvania Dutch Country of York and Lancaster counties, the lower half of the Lehigh Valley, and the lower Delaware Valley, both of which extend north through water gaps beyond the ridgeline.
Blue Mountain School District, which is named after the mountain range, is located just off PA Route 61 in Schuylkill Haven, Pennsylvania.
Geography
[edit]_(12735489134).jpg)
The ridge of Blue Mountain runs for 150 miles (240 km) through Pennsylvania, reaching an elevation of 2,270 feet (690 m) above sea level just north of the Pennsylvania Turnpike, near the borough of Newburg. Most of the ridgecrest, however, only reaches between 1,400 and 1,700 feet (430 and 520 m) in elevation. The mountain's width varies from 1 to 3 miles (1.6 to 4.8 km).
The southwestern end of the mountain is at Big Gap, west of Shippensburg. The mountain ridge continues to the southwest toward Maryland as Broad Mountain. The northeastern end of the mountain is at the Delaware Water Gap on the New Jersey border. Mount Minsi, elevation 1,461 feet (445 m), forms the promontory overlooking the Delaware River. The ridge of Blue Mountain continues northeast into New Jersey as Kittatinny Mountain.[6]
Blue Mountain marks the boundary between the Great Appalachian Valley and the main Ridge-and-Valley Appalachians.
Water gaps
[edit]Four of Pennsylvania's major rivers cut through Blue Mountain in water gaps:
- The Delaware River, which forms Pennsylvania's eastern border with New Jersey, passes through the ridge just southeast of Stroudsburg.
- The Lehigh River, which feeds the Delaware at Easton, passes through the Lehigh Gap at the ridge near Palmerton.
- The Schuylkill River, which feeds the Delaware at Philadelphia, passes through the ridge just north of Hamburg.
- The Susquehanna River, which feeds the Chesapeake Bay, passes through the ridge just north of Harrisburg, Pennsylvania's capital.
Pennsylvania Turnpike
[edit]
The Pennsylvania Turnpike system passes through Blue Mountain at two points:
- The Blue Mountain Tunnel carries the turnpike's east–west mainline (Interstate 76) through the ridge in northern Franklin County. The Kittatinny Mountain Tunnel bores through a parallel ridge of the same mountain just to the west, with the two tunnel portals only 0.2 miles (0.32 km) apart.
- The Lehigh Tunnel carries the turnpike's north–south Northeast Extension (Interstate 476) through the ridge between Lehigh and Carbon Counties. Both tunnels consist of two tubes and carry two lanes in each direction of travel.
Blue Mountain attractions in Pennsylvania
[edit]- Appalachian Trail is concurrent with the top of the ridge from New Jersey to northern Lebanon County, Pennsylvania.
- Blue Mountain Resort is found on the north face of the ridge in the southeastern corner of Carbon County, Pennsylvania.
- Boyd Big Tree Preserve Conservation Area is located in Dauphin County, Pennsylvania.
- Delaware Water Gap National Recreation Area reaches across Northampton, Monroe, and Pike counties and into New Jersey, mostly to the northwest of the ridge.
- Hawk Mountain Ranger School, located just south of the Sanctuary, trains Civil Air Patrol members for their ground search and rescue Ranger Teams.
- Hawk Mountain Sanctuary is located at the very northern edge of Berks County, Pennsylvania.
See also
[edit]References
[edit]- ^ "Blue Ridge Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2017-03-29.
Blue Ridge Mountain 1169893 Summit Wyoming PA 413628N 0760535W 1171 Meshoppen - 02-AUG-1979
- ^ a b c "Blue Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-02-07.
1193708 Name: Blue Mountain 40.1245315 -77.6663793 400728N 0773959W Roxbury
- ^ What's in a name, Spanning the Gap newsletter of the Delaware Water Gap National Recreation Area, Summer 1984
- ^ "Clarks Knob". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-02-08.
- ^ Measured along ridge point by point using maps.google.com ruler tool, anchored on New Jersey border, to Maryland border., 29 March 2017.
- ^ U.S. Geological Survey 1:24,000-scale and 1:250,000-scale topographic map series
External links
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