Jacob F. Shaffer Farm

Alesia is an unincorporated community in Carroll County, Maryland, United States. It is located northeast of Manchester and is southwest of Lineboro. Alesia is located by the old Baltimore and Hanover Railroad near the intersections of: Alesia Rd & Alesia To Lineboro Rd and Alesia Rd & Hoffmanville Rd.

Lineboro Historic District is a national historic district at Lineboro, Carroll County, Maryland, United States. It comprises most of the village of Lineboro. In addition to a number of 19th and early 20th century homes, also present are agricultural outbuildings, including bank barns. Public, commercial, and industrial buildings include several stores, a one-room school and a fire hall. Other buildings of interest include the former hotel, a feed mill, and the 1908 cruciform-plan Gothic Revival Lazarus Union Church. The district comprises a total of 83 resources, of which 70, or 84%, contribute to its significance.It was added to the National Register of Historic Places in 1996.

Lineboro (also Linesboro) is an unincorporated community located in northeastern Carroll County, Maryland, United States. The community was named for its location near the Mason–Dixon line.

Millers is an unincorporated community in Carroll County, Maryland, United States. The Jacob F. Shaffer Farm was listed on the National Register of Historic Places in 1998.

Blackrock is an unincorporated community in York County, Pennsylvania, United States. Blackrock is located near the Mason–Dixon line, approximately one mile northwest of the town of Lineboro.

Codorus Creek is a 42.4-mile-long (68.2 km) tributary of the Susquehanna River in York County, Pennsylvania, in the United States.

Codorus Township (formerly known as South Codorus Township) is a township in York County, Pennsylvania, United States. The population was 3,898 at the 2020 census.

Glenville is an unincorporated community in Manheim Township, York County, Pennsylvania, United States.

Charlotte's Quest Nature Center is a nature center in Manchester, Maryland. It is operated by the Manchester Parks Foundation and is adjacent to Pine Valley Park and Manchester Elementary School. It is located on 60 acres (240,000 m2) of land and contains 4+1⁄2 miles (7.2 km) of hiking trails.

S. B. Brodbeck Housing, also known as The Brick House, is a set of four historic rowhouses located at Codorus Township, Pennsylvania, York County, Pennsylvania. It was built in 1890–1891, and is a three-story, plus attic, brick building. It has a mansard roof with a fish-scale slate pattern in the Second Empire-style. The row measures 73 feet wide and 29 feet deep. It features a full-length two-story front porch and balcony, with an intricate railing and post bracket pattern. It was built by locally prominent Samuel B. Brodbeck.It was added to the National Register of Historic Places in 1990.

Manheim Township is a township in York County, Pennsylvania, United States. As of the 2020 census, the township population was 3,457.

Manchester Valley High School is a high school located in Manchester, Carroll County, Maryland on the eastern coast of the United States. Manchester Valley is located at 3300 Maple Grove Road. The school mascot is the Maverick, and the school colors are Navy Blue and Silver. The school is a part of the Carroll County Public Schools system.