Sand Brook, New Jersey

Headquarters is an unincorporated community located within the Amwell Valley of Delaware Township in Hunterdon County, New Jersey. The settlement is centered around the intersection of Zentek Road and County Route 604 (Rosemont-Ringoes Road). It is about 3 miles (4.8 km) from Ringoes to the east and 1 mile (1.6 km) from Sergeantsville to the west. The Headquarters Historic District was listed on the state and national registers of historic places in 2011 and had its boundary increased in 2016.

The Central Delaware Valley AVA is an American Viticultural Area located in southeastern Pennsylvania and New Jersey. The wine appellation includes 96,000 acres (38,850 ha) surrounding the Delaware River north of Philadelphia. Its southern boundary is near Titusville, New Jersey, just north of Trenton, and its northern border is near Musconetcong Mountain. A variety of Vitis vinifera and Vitis labrusca grape varieties can be grown in the area. It has a hot-summer humid continental climate (Dfa) and the hardiness zone is mostly 7a and ranges from 6b to 7b.

Sergeantsville is a historic unincorporated community located within Delaware Township, in Hunterdon County, in the U.S. state of New Jersey.Sergeantsville was first settled by a Mr. Thatcher in 1700, and was later named for Charles Sergeant, an American Revolutionary War soldier, in honor of the Sergeant family of which three brothers were local shopkeepers. "Out-of-towners give themselves away when they pronounce the first syllable 'sarge'; it's 'serge.'" Green Sergeant's Covered Bridge, constructed in 1872 across the Wickecheoke Creek, is located just west of Sergeantsville and is the oldest remaining covered bridge in New Jersey.Sergeantsville was officially created in 1827 when it became desirable to establish a post office. Until that time, this largely rural area was known as "Skunktown", perhaps because the town served as a market center for skunk pelts.Sergeantsville's annual "Thanksgiving in the Country" house tour, established in 1973, takes four or five different homes each year, that have historical, architectural or cultural qualities.

Amwell Township was a Township that existed in Hunterdon County, New Jersey, United States, from 1708 to 1846. The Township was established by royal patent on June 8, 1708, from Queen Anne, the first sovereign of the combined kingdom of Great Britain, while the area was part of West Jersey. At the time of its inception, its territory comprised 200 square miles (520 km2) and included the present day Delaware Township, Raritan Township, Readington Township, East Amwell Township and West Amwell Township and portions of Clinton, Lebanon and Tewksbury Townships. The township was named for Great and Little Amwell, Hertfordshire in England.On March 11, 1714, it became part of the newly formed Hunterdon County. Lebanon Township was first mentioned on October 26, 1731, as having been created from Amwell Township, though the exact date of its formation is unknown. Reading Township (now known as Readington Township) was created from portions of Amwell Township on July 15, 1730.On February 21, 1798, Amwell Township was incorporated by an Act of the New Jersey Legislature as one of New Jersey's initial 104 townships. On April 2, 1838, both Delaware Township and Raritan Township were created from portions of Amwell Township. On April 6, 1846, Amwell was split into East and West Amwell Townships, and Amwell Township was dissolved.

Delaware Township is a township in Hunterdon County, in the U.S. state of New Jersey. Part of the township is on the Hunterdon Plateau, while the southern portions are in the Amwell Valley. As of the 2020 United States census, the township's population was 4,560, a decrease of three people (−0.1%) from the 2010 census count of 4,563, which in turn reflected an increase of 85 (+1.9%) from the 4,478 counted in the 2000 census.The historic community of Sergeantsville is located within Delaware Township, as well as the unincorporated community of Raven Rock.

Bowne is an unincorporated community located at the intersection of the boundaries of Delaware, East Amwell and West Amwell townships in Hunterdon County, in the U.S. state of New Jersey.The area is named for Dr. John Bowne, a physician who owned a nearby farm. In the 1870s, the Flemington Railroad & Transportation Company constructed a railroad through the area connecting Lambertville and Flemington with a station (originally named Barber Station, renamed to Bowne Station) at the settlement. This railroad became part of the Belvidere Delaware Railroad and the Pennsylvania Railroad in later years. The railroad's current owner, Black River and Western Railroad, started running passenger trains down to Woodsedge Farm in May 2017. Similar in character to the townships in which the settlement is located, Bowne is surrounded by a mix of farmland, forest, and some single family houses along the main roads through the area, Bowne Station Road and Garboski Road.

The Covered Bridge Historic District, in Delaware Township, Hunterdon County, New Jersey, is a 97-acre (39 ha) historic district along County Route 604, Pine Hill Road, and Lower Creek Road. It was listed on the National Register of Historic Places on March 5, 1999, for its significance in architecture, settlement, and transportation. The listing included seven contributing buildings, two contributing structures, and three contributing sites.

Central Jersey, or Central New Jersey, is the middle region of the U.S. state of New Jersey. The designation Central Jersey is a distinct administrative toponym. While New Jersey is often divided into North Jersey and South Jersey, many residents recognize Central Jersey as a distinct entity. As of the 2020 census, Central Jersey has a population of 3,580,999. All descriptions of Central Jersey include Middlesex County, the population center of New Jersey, and tend to include much of nearby Monmouth, Mercer, Somerset, and Hunterdon counties. The inclusion of adjacent areas of Union and Ocean are a source of debate. In 2015, New Jersey Business magazine defined Central Jersey more narrowly as the five counties of Hunterdon, Mercer, Middlesex, Monmouth and Somerset.In 2022, legislation was proposed in the New Jersey Legislature to establish distinct geographic areas for tourism in the state. Bill A4711 was sponsored by Assemblymembers Roy Freiman, Sadaf Jaffer, and Anthony Verrelli in the New Jersey General Assembly. This included an official designation of the region of Central Jersey, which the legislation defines more broadly as the seven counties of Hunterdon, Mercer, Middlesex, Monmouth, Ocean, Somerset, and Union. The New Jersey Senate version of this legislation passed by a vote of 36-1 on June 20, 2023. On August 24, 2023, Gov. Murphy signed legislation officially designating Central Jersey including, at a minimum, the counties of Hunterdon, Mercer, Middlesex, and Somerset.The intersection of the two busiest highways in New Jersey, the New Jersey Turnpike and the Garden State Parkway, are located in Woodbridge in Central Jersey.Trenton, the seat of Mercer County and the state capital of New Jersey, is located in the region. New Jersey's geographic center is in Hamilton Township in Mercer County. In 2011, the population center of the state was in the western portion of East Brunswick.

Raritan Township is a township in Hunterdon County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 23,447, an increase of 1,262 (+5.7%) from the 2010 census count of 22,185, which in turn reflected an increase of 2,376 (+12.0%) from the 19,809 counted in the 2000 census. The township is located within the heart of the Amwell Valley and Raritan Valley regions, as the South Branch of the Raritan River (along with the Neshanic River) flows through the center of the township. The northwestern portion of the township is located on the Hunterdon Plateau. Raritan was incorporated as a township by an act of the New Jersey Legislature on April 2, 1838, from portions of the now-defunct Amwell Township. Flemington was formed within the township on March 14, 1870, and became an independent borough on April 7, 1910. Portions of the township were ceded to East Amwell Township in 1854 and 1897.The township's name is derived from the Raritan tribe, a Native American band of Lenape people that inhabited Central New Jersey. The name of the tribe is said to mean "forked river", "stream overflows" or "point on a tidal river".

Green Sergeant's Covered Bridge is a wooden covered bridge over the Wickecheoke Creek near the border between the Hunterdon Plateau and Amwell Valley located in Delaware Township, Hunterdon County, New Jersey. As the last historic covered bridge in the state of New Jersey, it was listed on the National Register of Historic Places on November 19, 1974 for its significance in engineering and transportation (the Scarborough Bridge in Cherry Hill is the only other covered bridge in New Jersey). It was added as a contributing property to the Covered Bridge Historic District in 1999.

Sandy Ridge is an unincorporated community located within Delaware Township in Hunterdon County, in the U.S. state of New Jersey. As its name implies, the community is located at the top of a small hill that is sandwiched between the Hunterdon Plateau and the Sourland Mountains. Sandy Ridge Road is the main road east and west through the community while County Route 605 is a minor arterial road that passes north and south through the area. CR 605 enters from the south on Sandy Ridge-Mt. Airy Road, jogs to the west on Sandy Ridge Road for 0.04 miles (64 m), and exits to the north on Cemetery Road towards CR 523. The area consists of mainly residences with some farmland and forestland. The Sandy Ridge Church (with adjacent cemetery) is a Baptist church founded in 1818 with its current building constructed in 1866 and is located in the center of Sandy Ridge.

The Case-Dvoor Farmstead is located on a 40-acre (16 ha) farm at 111 Mine Street in Raritan Township, near Flemington, of Hunterdon County, New Jersey. It was added to the National Register of Historic Places on December 11, 2009, for its significance in agriculture and architecture. It is now the headquarters of the Hunterdon Land Trust.