{{Infobox mountain , name = The Lookout , other_name = , etymology = , native_name = , native_name_lang = , photo = , photo_size = , photo_alt = , photo_caption = , map = USA Pennsylvania , map_image = , map_alt = , map_caption = Location of The Lookout , map_relief = , map_size = 250 , location = Springfield Township, Bucks County, Pennsylvania , label = , label_position = , elevation = , elevation_m = , elevation_ft = 906 , elevation_ref = National Elevation Dataset , prominence = Flint Hill , prominence_m = , prominence_ft = 179 , prominence_ref = , isolation = , isolation_km = , isolation_mi = 0.9 , isolation_ref = Kohlberg , parent_peak = Flint Hill , listing = , translation = , language = , pronunciation = , range = , coordinates = {{coord, 40, 30, 38, N, 75, 20, 50, W , coordinates_ref = National Elevation Dataset , topo = , type = , age = , volcanic_arc = , volcanic_belt = , volcanic_field = , volcanic_arc/belt = , last_eruption = , first_ascent = , easiest_route = , normal_route = , access = , child = , embedded = The Lookout is the second highest summit in Bucks County, Pennsylvania in the United States. Rising over Rocky Valley, it is located in Springfield Township, Bucks County, Pennsylvania, in the United States.MacReynolds, George, ''Place Names in Bucks County, Pennsylvania'', Doylestown, Bucks County Historical Society, Doylestown, PA, 1942, P1.

Physiography

The Lookout is described in the Bucks County Natural Areas Inventory Updatehttp://www.buckscounty.org/docs/default-source/government-documents/naiupdate2011.pdf, Ann F Rhoads and Timothy A. Black, Morris Arboretum of the University of Pennsylvania, March, 2011. Retrieved 3 August 2018. and the Springfield Township Conservation Plan as one of five outstanding geological features of Pennsylvania located in the county and is designated as a Priority 2 site, an area that has 'countywide or statewide significance based on overall quality and the diversity and importance of the resources'. It contains the headwaters of the Tohickon Creek and is part of the Cooks Creek Conservation Landscape and the Upper Tohickon Creek Conservation Landscape.

Hydrology

It is part of the Tohickon Creek and Hickon Creek watersheds, which is a part of the

Delaware River The Delaware River is a major river in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. From the meeting of its branches in Hancock (village), New York, Hancock, New York, the river flows for along the borders of N ...

watershed.

Geology

* Appalachian Highlands Division ** Piedmont Province *** Gettysburg-Newark Lowland Section ****

Diabase Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-graine ...

The Lookout is part of a circular formation, which surrounds the Quakertown area, of

diabase Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-graine ...

intrusion that occurred during the Triassic approximately 200 million years ago. A similar formation is located around the area which includes Pennsburg, East Greenville, and Red Hill, in

Montgomery County Montgomery County may refer to: Australia * The former name of Montgomery Land District, Tasmania United Kingdom * The historic county of Montgomeryshire, Wales, also called County of Montgomery United States * Montgomery County, Alabama * Mon ...

, Pennsylvania. The only other known similar formation is located in South Africa. The diabase is typically dark gray to black, dense, and fine grained, consisting of predominately labradorite and

augite Augite is a common rock-forming pyroxene mineral with formula . The crystals are monoclinic and prismatic. Augite has two prominent cleavages, meeting at angles near 90 degrees. Characteristics Augite is a solid solution in the pyroxene group. ...

. Rocks and Minerals of Pennsylvania, Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey, 2004, retrieved 3 August 2018

References

Mountains of Pennsylvania Landforms of Bucks County, Pennsylvania