Acme, Pennsylvania

Bear Rocks is an unincorporated community and census-designated place in Bullskin Township, Fayette County, Pennsylvania, United States. It is located along the south side of Pennsylvania Route 31 in northern Fayette County, on the western slope of Chestnut Ridge. The elevation ranges from 1,150 feet (350 m) above sea level at the northwestern end of the community, in the valley of Jacobs Creek, to 2,196 feet (669 m) near the southeastern corner of the community, at the intersection of Kreinbrook Hill Road and Sky Top Road. In 1977, Bear Rocks was the site of a controversial murder. A local man, David Munchinski, was found guilty of the crime and served 26 years in prison. He was later found to have been wrongfully convicted and was released.

Polymath Park is a 125-acre (0.51 km2) resort 60 miles (97 km) southeast of Pittsburgh, Pennsylvania, United States, in the Laurel Highlands of Western Pennsylvania. The site, near the village of Acme in Westmoreland County, is surrounded by private forest in the Allegheny Mountains and features four architectural landmarks: Frank Lloyd Wright's (1867–1959) Donald C. Duncan House and R. W. Lindholm Residence, and two others by Peter Berndtson (1909–1972), who was one of the original Wright apprentices. The park is near Wright's Fallingwater (23 miles) and Kentuck Knob (29 miles). Duncan House and Lindholm House are the only Wright houses in the area that accommodate overnight visitors. Berndtson's 1962 master plan for Polymath Park allowed for 24 dwellings, each sited in a circular clearing in the forest. Only two houses, however, were actually built: the Balter House in 1964 and the 1965 Blum House. Duncan House was added to the park in June 2007. Built in 1957 in Lisle, Illinois, for Donald and Elizabeth Duncan, Wright's prefab Usonian was deconstructed in suburban Chicago in 2004 and reassembled in Pennsylvania. Lindholm House, named Mäntylä, was built in 1952 for R. W. Lindholm at Cloquet, Minnesota, and was dismantled in 2016 and rebuilt at Polymath Park in 2018. It opened in April 2019. Polymath Park is run by the nonprofit Usonian Preservation Corporation. Proceeds from rentals go toward maintenance of the houses and to architectural education programs.

Laurel Run is a 3.76 mi (6.05 km) long 2nd order tributary to Jacobs Creek in Westmoreland County, Pennsylvania.

Kecksburg is an unincorporated community in Mount Pleasant Township, Westmoreland County, Pennsylvania, United States. Located in a heavily wooded area along PA Route 982, it is approximately thirty miles southeast of Pittsburgh at an elevation of 1,209 feet.

The Mammoth Mine disaster or Frick Mine explosion occurred on January 27, 1891 just after 9:00 AM in the Mammoth No. 1 mine in Mount Pleasant Township, Westmoreland County, Pennsylvania. Newspapers reported that firedamp was ignited by a miner's oil lamp, resulting in the deaths of 109 men and boys. Most of the miners were not killed by the force of the explosion, but rather were suffocated by the effects of afterdamp.

Mount Vernon Furnace, also known as Jacob's Creek Furnace and Alliance Iron Works, is a historic iron furnace located at Bullskin Township, Fayette County, Pennsylvania. It was built in 1795 and rebuilt in 1801. It is a stone structure measuring 24 feet square and 30 feet high, with two arches. It was built as a blast furnace and went out of blast in 1825.It was added to the National Register of Historic Places in 1991.

Romney is an unincorporated community in Fayette County in the U.S. state of Pennsylvania.

Sagamore is an unincorporated community in Fayette County, Pennsylvania, United States.

Shupe Run is a 3.08 mi (4.96 km) long 2nd order tributary to Jacobs Creek in Westmoreland County, Pennsylvania.

The 2020 Pennsylvania Turnpike crash occurred in Mount Pleasant, Pennsylvania, on the Pennsylvania Turnpike in icy conditions at around 3:40 am on January 5, 2020. It was sparked by a 52-passenger tour bus traveling downhill, which struck an embankment and flipped on its side, causing a chain-reaction crash of two UPS trucks, a FedEx truck, and at least one other vehicle. Five people were killed, at least 60 people were injured, and an 86-mile (138 km) stretch of the Pennsylvania Turnpike was shut down in both directions as the crash was being investigated.

Welty Run is a 6.59 mi (10.61 km) long 3rd order tributary to Sewickley Creek in Westmoreland County, Pennsylvania. This is the only stream of this name in the United States.

Mount Pleasant Area Junior/Senior High School is a public high school in Mount Pleasant Township, Westmoreland County, Pennsylvania. It is part of the Mount Pleasant Area School District. It enrolls 1200 students in grades 7-12. It is located off Pennsylvania Route 981. The high school was opened in 1964, and the junior high was added in 1975.