Hainesburg, New Jersey

The Paulinskill Viaduct, also known as the Hainesburg Viaduct, is a reinforced concrete railroad bridge that crosses the Paulins Kill in Knowlton Township, New Jersey. When completed in 1910, it was the largest reinforced concrete structure in the world.

The Warrington Stone Bridge is a historic stone arch bridge carrying Brugler Road over the Paulins Kill in the Warrington section of Knowlton Township in Warren County, New Jersey, United States. The bridge was built c. 1860 and added to the National Register of Historic Places on December 16, 1977, for its significance in transportation.

Knowlton Township is a township in Warren County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 2,894, a decrease of 161 (−5.3%) from the 2010 census count of 3,055, which in turn reflected an increase of 78 (+2.6%) from the 2,977 counted in the 2000 census.

Brook Hollow Winery is a winery in the Columbia section of Knowlton Township in Warren County, New Jersey. Brook Hollow's original vineyard was first planted in 2002, and opened to the public in 2007. In 2013, the winery moved to a new location in Columbia. Brook Hollow has 8 acres of grapes under cultivation, and produces 1,050 cases of wine per year. The winery is named for a hollow created by Yards Creek, a stream that runs through the farm's original location.

Warrington is an unincorporated community located within Knowlton Township in Warren County, in the U.S. state of New Jersey. It is located on the Paulins Kill, approximately 1 mi (1.6 km) northeast of where it flows into the Delaware River.

Dry Brook is a tributary of the Paulins Kill in Frankford Township and Branchville Borough in Sussex County in northwestern New Jersey, United States. Its waters combine with the Culver Brook or West Branch of the Paulins Kill with the river's East Branch near the unincorporated hamlet Augusta near Branchville.

Worthington State Forest is a state forest located in Warren County, New Jersey within the Delaware Water Gap National Recreation Area, just north of the water gap in the Skylands Region of the state. It covers an area of 6,660 acres (27.0 km2) and stretches for more than 7 miles (11 km) along the Kittatinny Ridge near Columbia. The park offers hiking, camping (including a hike-in, primitive area) and canoeing and kayaking on the Delaware River. There are nearly 20 miles (32 km) of hiking trails within the park, including 7 miles (11 km) of the Appalachian Trail, which passes through the park. The park is operated and maintained by the New Jersey Division of Parks and Forestry.

Columbia is an unincorporated community and census-designated place (CDP) located within Knowlton Township in Warren County, in the U.S. state of New Jersey. While the community has existed for over a century, the CDP was created as part of the 2010 United States Census. As of the 2010 Census, the CDP's population was 229. The area is served as United States Postal Service ZIP Code 07832.

The Paulins Kill (also known as Paulinskill River) is a 41.6-mile (66.9 km) tributary of the Delaware River in northwestern New Jersey in the United States. With a long-term median flow rate of 76 cubic feet of water per second (2.15 m³/s), it is New Jersey's third-largest contributor to the Delaware River, behind the Musconetcong River and Maurice River. The river drains an area of 176.85 square miles (458.0 km2) across portions of Sussex and Warren counties and 11 municipalities. It flows north from its source near Newton, and then turns southwest. The river sits in the Ridge and Valley geophysical province. The Paulins Kill was a conduit for the emigration of Palatine Germans who settled in northwestern New Jersey and northeastern Pennsylvania during the colonial period and the American Revolution. Remnants of their chiefly agricultural settlements are still found in local architecture, cemeteries, farms and mills, and the area remains largely rural. Flowing through rural sections of Sussex and Warren counties, it is regarded as an excellent place for fly fishing. The surrounding area is used for hiking and other forms of recreation such as observing birds and other wildlife.

The Portland–Columbia Toll Bridge is a toll bridge over the Delaware River between Pennsylvania Route 611 at Portland, Pennsylvania, and U.S. Route 46 in the Columbia section of Knowlton Township, New Jersey, United States. It is owned and operated by the Delaware River Joint Toll Bridge Commission. New Jersey Route 94 begins on the Pennsylvania-New Jersey State Line over the river, and continues into New Jersey, though it is not signed as that route until after leaving the bridge.

The Mount Tammany Fire Road is an unpaved 4.5-mile (7.2 km) road on the eastern ridgeline of Kittatinny Mountain from Upper Yards Creek Reservoir to Mount Tammany, the 1,527-foot (465 m) prominence on the New Jersey side of the Delaware Water Gap. The fire road, located within Worthington State Forest, is maintained as a firebreak and access road for wildfire suppression efforts by the New Jersey Forest Fire Service. There are three helispots along the fire road used by the Forest Fire Service. The Mount Tammany Fire Road was constructed as a dozer line created after the 1976 Dunnfield Creek fire on Kittatinny Mountain which consumed over 2,000 acres (8.1 km2) of forests from April 18 to April 22, 1976. Today, the road is often used as part of a loop with the Appalachian Trail, Sunfish Pond Fire Road, Dunnfield Creek trail and other trails by hikers visiting the Delaware Water Gap. The Mount Tammany Fire Road connects with the Blue Dot Trail, Red Dot Trail, Turquoise and Taylor Trails on Mount Tammany.

Sunfish Pond is a 44-acre (18 ha) glacial lake surrounded by a 258-acre (104 ha) hardwood forest located on the Kittatinny Ridge within Worthington State Forest, adjacent to the Delaware Water Gap National Recreation Area in Warren County, New Jersey. The Appalachian Trail runs alongside the western and northern edges of the lake. It was created by the Wisconsin Glacier during the last ice age. The lake was declared a National Natural Landmark in January 1970.