Mainville, Pennsylvania

Furnace Run is a tributary of Catawissa Creek in Columbia County, Pennsylvania, in the United States. It is approximately 2.5 miles (4.0 km) long and flows through Catawissa Township and Main Township. The stream is the last named tributary to enter Catawissa Creek before its mouth. The stream's watershed has an area of 2.82 square miles (7.3 km2). The main rock formations are the Pottsville Group and the Mauch Chunk Formation. The stream itself is considered to be a high quality coldwater fishery and Class A Wild Trout Waters.

Scotch Run is one of the main tributaries of Catawissa Creek in Columbia County, Pennsylvania, in the United States. It is approximately 7.8 miles (12.6 km) long and flows through Beaver Township and Main Township. The stream's watershed has an area of 9.10 square miles (23.6 km2). The stream is infertile and acidic. It is 7.2 feet (2.2 m) wide in its upper reaches and 17.0 feet (5.2 m) wide in its lower reaches. The main rock formations in the watershed include the Mauch Chunk Formation, the Pocono Formation, the Pottsville Formation, and the Spechty Kopf Formation. The main soils include Leck Kill soil and Hazleton soil. It flows between Nescopeck Mountain and McCauley Mountain. Nearly all of Scotch Run's length is within 1,640 feet (500 m) of a road. However, most of its length is not within 328 feet (100 m) of one. Part of Pennsylvania State Game Lands Number 58 is in the watershed and ephemeral natural pool system is located near the stream. The area in the vicinity of the stream was settled relatively late compared to the surrounding areas. The Pennsylvania Fish and Boat Commission carried out a survey of the creek in 1977. Scotch Run is designated as a Coldwater Fishery and a Migratory Fishery. In 1997, three species of fish were observed in the upper reaches of the stream, while eight species were observed in the lower reaches. Both reaches contained brown trout and brook trout. There is a hemlock-mixed hardwood palustrine forest along the stream.

Fisher Run is a tributary of Catawissa Creek in Columbia County, Pennsylvania, in the United States. It is approximately 2.9 miles (4.7 km) long and flows through Main Township and Beaver Township. The stream is impaired by acid mine drainage. It is considered to be a high-quality coldwater fishery and Class A Wild Trout Waters. The watershed of the stream has an area of 3.03 square miles (7.8 km2).

Mine Gap Run is a tributary of Catawissa Creek in Columbia County, Pennsylvania, in the United States. It is approximately 1.5 miles (2.4 km) long and flows through Roaring Creek Township and Beaver Township. The watershed of the stream has an area of 0.92 square miles (2.4 km2). The stream is polluted and acidic. However, it is considered to be a coldwater fishery. The main rock formations in the stream's watershed are the Mauch Chunk Formation, the Spechty Kopf Formation, the Pocono Formation, and the Buddys Run Member of the Catskill Formation.

Almedia is a census-designated place (CDP) in Columbia County, Pennsylvania, United States. It is part of Northeastern Pennsylvania. The population was 1,078 at the 2010 census. It is part of the Bloomsburg-Berwick micropolitan area.

Main Township is a township in Columbia County, Pennsylvania. It is part of Northeastern Pennsylvania. The population was 1,272 at the 2020 census. Main Township was settled in 1772 and incorporated in 1844. The iron industry was once preeminent in the township.

Columbia Central High School is a small, rural public high school in central Pennsylvania that was founded in 1960. It is commonly known in the area as "Central". The district consists of a high school, middle school, and elementary school operated by the Central Columbia School District. Central Columbia High School is located at 4777 Old Berwick Road, Bloomsburg. Central Columbia High School students may choose to attend Columbia-Montour Area Vocational-Technical School for training in the trades and service industry. The Central Susquehanna Intermediate Unit CSIU16 provides the school with a wide variety of services like specialized education for disabled students and hearing, speech and visual disability services and professional development for staff and faculty.

The Bloomsburg–Berwick Metropolitan Statistical Area (MSA), as defined by the United States Census Bureau, is an area consisting of two counties in Pennsylvania, anchored by the town of Bloomsburg and the borough of Berwick. As of the 2010 census, the MSA had a population of 85,562 (though a July 1, 2013 estimate placed the population at 85,338).

South Centre Township is a township in Columbia County, Pennsylvania. It is part of Northeastern Pennsylvania. The population was 1,908 at the 2020 census.

Espy is a census-designated place (CDP) in Columbia County, Pennsylvania, United States. It is part of Northeastern Pennsylvania. The population was 1,642 at the 2010 census. It is part of the Bloomsburg-Berwick micropolitan area. Espy was first settled in the late 18th century. It was home to a boatyard in the 19th century.

The Espy Bog (also known as the Espy Wetlands) is wetland complex in Columbia County, Pennsylvania, in the United States. It is situated near Bloomsburg and Espy. The wetlands contain a lake, as well as forested swamps, shrub swamps, and graminoid openings. The lake in the wetland complex may be manmade. The predominant soil in the area is known as mucky peat. The wetland complex has a high level of plant and animal biodiversity, including birds, turtles, fish, trees, shrubs, and ferns.

Lime Ridge is a census-designated place (CDP) in Columbia County, Pennsylvania, United States. It is part of Northeastern Pennsylvania. The population was 890 at the 2010 census. It is part of the Bloomsburg-Berwick micropolitan area. Lime Ridge is named for limestone deposits in the area.