Frederick County, Maryland

The Monocacy River Railroad Bridge and Viaduct is a 326-foot (99 m) open deck steel girder bridge with two main spans crossing the river and two viaduct sections crossing the floodplain, south of Walkersville, Maryland. Originally constructed by the Frederick and Pennsylvania Line Railroad Company (F&PL). Construction began in late 1871, and continued until July 1872 when the railroad opened that year. It was rebuilt by the Pennsylvania Railroad prior first in 1900-1905 as an open deck riveted iron plate under girder bridge. In 1915, the bridge was surveyed as part of the Interstate Commerce Commission's ("ICC") effort to establish freight rates for the Parent railroad. In 1927, the Pennsylvania Railroad rebuilt the bridge again using deeper and thicker steel girders, but leaving the masonry piers intact. In 1972, the two 85 foot river spans were washed out by Hurricane Agnes. In 1982, the State of Maryland purchased the bridge as part of the railroad line. In 1995, the State rebuilt the river spans and Pier 3 which is located in the middle of the river crossing was completely reconstructed using concrete to replace the original masonry foundations. In 2015, the State performed minor maintenance on the structure and painted some spans. As of 2016, the bridge is in active rail service, operated by the Walkersville Southern RR.

The Tuscarora Creek bridge is a 63.5-foot (19.4 m) single-span, steel, through-girder bridge with a floor beam/stringer system supporting a 12-inch-thick concrete slab south of Walkersville, Maryland. Originally constructed by the Frederick and Pennsylvania Line Railroad Company (F&PL) in 1872. It was later rebuilt by the Pennsylvania Railroad in 1907 as a thru girder concrete deck bridge using an older bridge from the Northern Central Railway. In 1915, the bridge was surveyed as part of the Interstate Commerce Commission's effort to establish freight rates for the Parent railroad. As of 2021, the bridge is in active rail service, operated by the Walkersville Southern RR.

Harmony Grove is a ghost town located close to U.S. Route 15, north of Frederick (city) in Frederick County, Maryland. Harmony Grove is considered part of the Piedmont region of Maryland.

Spring Bank Farm is a large house, built in 1880 near Frederick, Maryland in the small community of Harmony Grove. The house combines Gothic Revival and Italianate architecture. The house retains much of its historic detailing and interior fabric, as well as a number of outbuildings.The Spring Bank Farm was listed on the National Register of Historic Places in 1984.

Biggs Ford Site is an archaeological site near Frederick in Frederick County, Maryland. It is one of the few known, large late prehistoric Native American village sites near the Monocacy River. The site dates from the Middle to Late Woodland period.It was listed on the National Register of Historic Places in 1975.

Tuscarora Creek is a 49.2-mile-long (79.2 km) tributary of the Juniata River in central Pennsylvania in the United States. It rises in eastern Huntingdon County, east of the borough of Shade Gap, and flows northeast between Tuscarora Mountain and Shade Mountain, reaching the Juniata River at Port Royal in Juniata County. It is traversed by the Academia Pomeroy Covered Bridge, which at 278 feet (85 m) portal to portal is the longest remaining covered bridge in Pennsylvania. The bridge spans Tuscarora Creek between Spruce Hill and Beale townships. It is listed on the National Register of Historic Places and has been owned by the Juniata County Historical Society since 1962.

Frederick Community College (FCC) is a public community college in Frederick, Maryland.

The Nallin Farm House and the related Nallin Farm Springhouse and Bank Barn are located on Fort Detrick at Frederick, Maryland. The Federal style brick farmhouse was built in stages between the 1780s and the 1830s and formerly served as the residence of the Fort Detrick commanding officer. It is known on post as "Building 1652".The Nallin Farm was incorporated into Fort Detrick upon the post's expansion in 1955. It was added to the National Register of Historic Places on May 23, 1974.

Edgewood is a historic home located at Frederick, Frederick County, Maryland, United States. It is a two-story multipart limestone farmhouse featuring narrow courses of native stone. The house was constructed and added to over the 18th and 19th century and reflects the Greek Revival style popular at that time. It is associated with the Schley family, prominent 19th century residents of Frederick County, who held the farm from 1830 until 1911.Edgewood was listed on the National Register of Historic Places in 1979. It was destroyed by fire in 2010 and has been delisted from the register.

The Nallin Farm Springhouse and Bank Barn are closely associated with the Nallin Farm House on the grounds of Fort Detrick, Maryland, US. The barn is a good example of a fieldstone-built bank barn with a byre on the lower level and an earth ramp on the opposite side providing access to a haymow.The simple stone springhouse is the source of 3+1⁄2-acre Nallin Pond. The barn and springhouse were built c. 1800. The Nallin Farm Springhouse and Bank Barn was listed on the National Register of Historic Places in 1977.The barn has a hay hood, as can be seen in the 14th of 17 photos included in the nomination.

Tuscarora Creek is a 7.7-mile-long (12.4 km) tributary of the Monocacy River in Frederick County, Maryland, in the United States. The creek rises at the eastern base of Catoctin Mountain, about 6.5 miles (10.5 km) north-northwest of the city of Frederick, and flows southeast about to its mouth at the Monocacy. The creek's watershed area is 15.28 square miles (39.6 km2).

Clover Hill is an unincorporated community and former census-designated place (CDP) in Frederick County, Maryland, United States. The population was 3,260 at the 2000 census. The area was not listed as a CDP for the 2010 census, and no population total was published.