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Sugar Grove Petroglyphs
The Sugar Grove Petroglyphs are a group of petroglyphs in the southwestern part of the U.S. state of Pennsylvania. Located on an outcrop of sandstone in Monongahela Township near the eastern edge of Greene County, the petroglyphs have been known since at least the 1930s. Due to their value as an archaeological site, the petroglyphs have been named a historic site. Creation It is certain that the Sugar Grove Petroglyphs are the work of a Native American people, although the cultural affiliation of their creators is unknown. Among the cultures that archaeologists have seen as possible creators are the Monongahela or Fort Ancient, both of which are known to have inhabited the upper portions of the Ohio River valley.Herbstritt, James T. National Register of Historic Places Inventory/Nomination: Sugar Grove Petroglyph Site (36GR5). National Park Service, 1980-07-22. In his 1974 monograph ''Rock Art of the Upper Ohio Valley'', petroglyph specialist James L. Swauger argued f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Route 88
Pennsylvania Route 88 (PA 88) is a north–south state highway located in southwestern Pennsylvania. The southern terminus of the route is at U.S. Route 119 (US 119) in Point Marion less than from the Pennsylvania-West Virginia border. The northern terminus is at PA 51 in Pittsburgh. PA 88 runs parallel to the Monongahela River for almost its entire length. Signed in 1927, PA 88 is one of the oldest state highways in Pennsylvania. For a brief period between 1927 and 1928, the route followed the Perry Highway between Pittsburgh and Erie. In 1928, the Perry Highway became US 19. Route description PA 88 in Speers, right PA 88 begins in Point Marion at an intersection with US 119. PA 88 begins as Main Street then turns to the west crossing the Monongahela River into Greene County on the Albert Gallatin Memorial Bridge. After crossing the river, PA 88 turns to the north as it begins to parallel the Monongahela River to the east as well as railroad tracks t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio River
The Ohio River is a long river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing southwesterly from western Pennsylvania to its river mouth, mouth on the Mississippi River at the southern tip of Illinois. It is the third largest river by discharge volume in the United States and the largest tributary by volume of the north-south flowing Mississippi River that divides the eastern from western United States. It is also the 6th oldest river on the North American continent. The river flows through or along the border of six U.S. state, states, and its drainage basin includes parts of 14 states. Through its largest tributary, the Tennessee River, the basin includes several states of the southeastern U.S. It is the source of drinking water for five million people. The lower Ohio River just below Louisville is obstructed by rapids known as the Falls of the Ohio where the elevation falls in restricting larger commercial navigatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venango County, Pennsylvania
Venango County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 50,454. Its county seat is Franklin. The county was created in 1800 and later organized in 1805. Venango County comprises the Oil City, PA micropolitan statistical area. It is part of the Pittsburgh media market. History Shortly afterward, Rogers met oil pioneer Charles Pratt, who purchased the entire output of the tiny Wamsutta Oil Refinery. In 1867, Rogers joined Pratt in forming Charles Pratt and Company, which was purchased by Standard Oil in 1874. Rogers became one of the key men in John D. Rockefeller's Standard Oil Trust. Venango County was created on March 12, 1800, from parts of Allegheny and Lycoming Counties. The name "Venango" is derived from the Native American name of the region, ''Onenge'', meaning ''Otter.'' This was corrupted in English as the ''Venango River''. The settlement at its mouth was likewise called ''Venango,'' which since March 3, 1871, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian God Rock
Indian God Rock is a large boulder in the northwestern part of the U.S. state of Pennsylvania. Located near the unincorporated community of Brandon, it lies along the Allegheny River in Venango County's Rockland Township. It is significant for the large petroglyph on one of its sides. Because of the petroglyph, the rock has been an explorers' landmark, a tourist attraction, and an object of scholarly investigation. Geology One of many large boulders lining the banks of the Allegheny River in Venango County, Indian God Rock is composed of sandstone and measures approximately 22×14×10 feet,Hopey, Don. "Heavy History". ''Pittsburgh Post-Gazette'', 15 April 1993. C1, C2. or 7×4×4 meters by another measurement. As sandstone is an easy material to carve, the rock was an ideal surface for the creation of rock art. Early history Among the fifty-five different figures present on Indian God Rock include geometric shapes and depictions of humans and animals in a range of posit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plaster Cast
A plaster cast is a copy made in plaster of another 3-dimensional form. The original from which the cast is taken may be a sculpture, building, a face, a pregnant belly, a fossil or other remains such as fresh or fossilised footprints – particularly in palaeontology (a track of dinosaur footprints made in this way can be seen outside the Oxford University Museum of Natural History). Sometimes a blank block of plaster itself was carved to produce mock-ups or first drafts of sculptures (usually relief sculptures) that would ultimately be sculpted in stone, by measuring exactly from the cast, for example by using a pointing machine. These are still described as plaster casts. Examples of these by John Flaxman may be found in the central rotunda of the library at University College London, and elsewhere in the University's collections. It may also describe a finished original sculpture made out of plaster, though these are rarer. Method Plaster is applied to the origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnegie Museum Of Natural History
The Carnegie Museum of Natural History (abbreviated as CMNH) is a natural history museum in the Oakland neighborhood of Pittsburgh, Pennsylvania. It was founded by Pittsburgh-based industrialist Andrew Carnegie in 1896. Housing some 22 million specimens, the museum features one of the finest paleontological collections in the world. Description and history The museum consists of organized into 20 galleries as well as research, library, and office space. It holds some 22 million specimens, of which about 10,000 are on view at any given time and about 1 million are cataloged in online databases. In 2008 it hosted 386,300 admissions and 63,000 school group visits. Museum education staff also actively engage in outreach by traveling to schools all around western Pennsylvania. The museum gained prominence in 1899 when its scientists unearthed the fossils of '' Diplodocus carnegii''. Notable dinosaur specimens include one of the world's very few fossils of a juvenile ''Apatosauru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fayette County, Pennsylvania
Fayette County is a county in the Commonwealth of Pennsylvania. It is located in southwestern Pennsylvania, adjacent to Maryland and West Virginia. As of the 2020 census, the population was 128,804. Its county seat is Uniontown. The county was created on September 26, 1783, from part of Westmoreland County and named after the Marquis de Lafayette. Fayette County is part of the Pittsburgh, PA Metropolitan Statistical Area. The southern border of Fayette County is the southern border of Pennsylvania at both the Pennsylvania–Maryland state line (the Mason–Dixon line) and the Pennsylvania–West Virginia state line. History The first Europeans in Fayette County were explorers, who had used an ancient American Indian trail that bisected the county on their journey across the Appalachian Mountains. In 1754, when control of the area was still in dispute between France and Great Britain, 22-year-old George Washington fought against the French at the Battle of Jumonville Gle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarry
A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to reduce their environmental impact. The word ''quarry'' can also include the underground quarrying for stone, such as Bath stone. Types of rock Types of rock extracted from quarries include: *Chalk *China clay *Scoria, Cinder *Clay *Coal *Construction aggregate (sand and gravel) *Coquina *Diabase *Gabbro *Granite *Gritstone *Gypsum *Limestone *Marble *Ores *Phosphate rock *Quartz *Sandstone *Slate *Travertine Stone quarry Stone quarry is an outdated term for mining construction rocks (limestone, marble, granite, sandstone, etc.). There are open types (called quarries, or open-pit mines) and closed types (Mining, mines and caves). For thousands of years, only hand tools had been used in quarries. In the 18th century, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunkard Group
The Permian Dunkard Group (Pd) is an area of rock, Early Permian in age, in the south of Ohio, southwestern Pennsylvania, West Virginia and the hilltops of the Georges Creek Basin of Maryland. In Ohio, it is found primarily in Washington County. It is notable for being one of the few areas of Permian sediment east of the Mississippi River. In addition, it is the youngest surface rock in the state of Ohio. Description It consists of red and green shale, siltstone, and sandstone, with thin lenticular beds of argillaceous limestone and thin beds of impure coal The base of the layer contains thick-bedded, white conglomeratic sandstone. The layer's thickness is greater than 200 feet in Maryland. The fossils found in the Dunkard Group are similar to ones found in Texas and Oklahoma of similar age. Fossil content * ''Dimetrodon'' * '' Ctenospondylus'' * ''Archaeothyris'' * ''Edaphosaurus'' * ''Eryops'' * ''Xenacanthus'' * ''Ophiacodon'' * '' Diploceraspis'' * ''Diplocaulus'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ojibwe
The Ojibwe, Ojibwa, Chippewa, or Saulteaux are an Anishinaabe people in what is currently southern Canada, the northern Midwestern United States, and Northern Plains. According to the U.S. census, in the United States Ojibwe people are one of the largest tribal populations among Native Americans in the United States, Native American peoples. In Canada, they are the second-largest First Nations in Canada, First Nations population, surpassed only by the Cree. They are one of the most numerous Indigenous peoples of the Americas, Indigenous Peoples north of the Rio Grande. The Ojibwe population is approximately 320,000 people, with 170,742 living in the United States , and approximately 160,000 living in Canada. In the United States, there are 77,940 mainline Ojibwe; 76,760 Saulteaux; and 8,770 Mississauga, organized in 125 bands. In Canada, they live from western Quebec to eastern British Columbia. The Ojibwe language is Ojibwe language, Anishinaabemowin, a branch of the Algonquia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_pic.088_Oil_Rush_in_Venango_County%2C_PA%2C_in_1866.jpg "Click for more on -> Venango County, Pennsylvania")
