Columbia Trail

Middle Valley is an unincorporated community located along Middle Valley Road and County Route 513 (West Mill Road) in Washington Township, Morris County, New Jersey. It is located near Long Valley within the valley of the South Branch Raritan River. The Middle Valley Historic District was listed on the state and national registers of historic places in 1989 and 1990.

The Frog Hollow Road Bridge is a historic stone arch bridge that carries Frog Hollow Road over a minor tributary of the South Branch Raritan River in Tewksbury Township of Hunterdon County, New Jersey, United States. Built between 1860 and 1873, it was added to the National Register of Historic Places on December 12, 2002, for its significance in engineering and transportation. It was listed as part of the Historic Bridges of Tewksbury Township, Hunterdon County, New Jersey Multiple Property Submission (MPS). The bridge is a single-arch rubble stone bridge that carries a narrow rural road over Frog Hollow Brook, a minor tributary of the South Branch Raritan River. The brook joins the river at Califon. According to the nomination form, it is "characterized by extraordinarily rough construction".

The Califon School District is a community public school district that serves students in pre-kindergarten through eighth grade from Califon, in Hunterdon County, New Jersey, United States.As of the 2021–22 school year, the district, comprised of one school, had an enrollment of 83 students and 14.9 classroom teachers (on an FTE basis), for a student–teacher ratio of 5.6:1. In the 2016-17 school year, Califon had the seventh-smallest enrollment of any school district in the state.The district is classified by the New Jersey Department of Education as being in District Factor Group "I", the second-highest of eight groupings. District Factor Groups organize districts statewide to allow comparison by common socioeconomic characteristics of the local districts. From lowest socioeconomic status to highest, the categories are A, B, CD, DE, FG, GH, I and J.Public school students in ninth through twelfth grades attend Voorhees High School, which also serves students from Glen Gardner, Hampton, High Bridge, Lebanon Township and Tewksbury Township. As of the 2021–22 school year, the high school had an enrollment of 780 students and 76.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.2:1. The school is part of the North Hunterdon-Voorhees Regional High School District, which also includes students from Bethlehem Township, Clinton Town, Clinton Township, Franklin Township, Lebanon Borough and Union Township who attend North Hunterdon High School in Annandale.

Lower Valley is an unincorporated community located along County Route 513 (High Bridge-Califon Road) in Califon Borough and Lebanon Township of Hunterdon County, New Jersey. It is at the western end of Long Valley, historically known as German Valley, the valley of the South Branch Raritan River south of Schooley's Mountain.

The Main Street Bridge, historically known as the Califon Bridge, is a Pratt thru truss bridge that carries Main Street (County Route 512) over the South Branch Raritan River in Califon, Hunterdon County, New Jersey. The bridge was added to the National Register of Historic Places on October 14, 1976, as part of the Califon Historic District.

Califon is a borough in Hunterdon County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 1,005, a decrease of 71 (−6.6%) from the 2010 census count of 1,076, which in turn reflected an increase of 21 (+2.0%) from the 1,055 counted in the 2000 census.The town was originally called California starting in 1849, but the name was shortened to Califon around 1875 in order to fit on a sign being painted at the train station. Alternatively, the name was related to a bright yellow cattle feed sold during the Gold Rush.

The J. K. Apgar Farmhouse is a historic stone house located at the intersection of County Route 512 (Academy Street) and Guinea Hollow Road in the borough of Califon in Hunterdon County, New Jersey. It was added to the National Register of Historic Places on November 1, 1979, for its significance in architecture.

The Anthony–Corwin Farm is a historic farmhouse located at 244 West Mill Road near Long Valley in Washington Township, Morris County, New Jersey. It was added to the National Register of Historic Places on May 1, 1992, for its significance in architecture. The 11.5-acre (4.7 ha) farm overlooks the valley formed by the South Branch Raritan River. The farmhouse is part of the Stone Houses and Outbuildings in Washington Township Multiple Property Submission (MPS).

The Leonard Neighbor Farmstead is a historic house located at 177 West Mill Road near Long Valley in Washington Township, Morris County, New Jersey. It was added to the National Register of Historic Places on May 1, 1992, for its significance in architecture. The farm overlooks the valley formed by the South Branch Raritan River. The house is part of the Stone Houses and Outbuildings in Washington Township Multiple Property Submission (MPS).

Washington Township is a township in Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 18,197, a decrease of 336 (−1.8%) from the 2010 census count of 18,533, which in turn reflected an increase of 941 (+5.3%) from the 17,592 counted in the 2000 census.The township is situated in the westernmost part of Morris County bordering both Hunterdon and Warren counties. It is located within the Raritan Valley region and is one of six municipalities (five of which are townships) in the state with the name "Washington". Washington Borough, located only 10 miles (16 km) away, is surrounded by another municipality that is also called Washington Township in Warren County. The township has been ranked as one of the state's highest-income communities. Based on data from the American Community Survey (ACS) for 2014–2018, Washington Township residents had a median household income of $150,682, nearly 90% above the statewide median of $79,363. In the 2013–2017 ACS, Washington Township had a median household income of $140,445, ranking 45th in the state.

The Jacob Wise Neighbor House is a historic house built c. 1830 and located at 143 West Mill Road near Long Valley in Washington Township, Morris County, New Jersey. The J. W. Neighbor House was added to the National Register of Historic Places on February 22, 1991, for its significance in architecture. The 3.5-acre (1.4 ha) property overlooks the valley formed by the South Branch Raritan River. It is now the Neighbour House Bed & Breakfast.

Spruce Run is a tributary of the Raritan River in Hunterdon County, New Jersey. It starts from the southwestern slope of Schooley's Mountain, northeast of Anthony in Lebanon Township, and flows southwest toward Glen Gardner. It then flows south toward Clinton, where it joins the South Branch Raritan River. The Mulhockaway Creek is a tributary and flows from Jug Mountain. The southern slopes of the Musconetcong Mountain drain into the Spruce Run.