Pleasant Valley, Mercer County, New Jersey

The Howell Living History Farm, also known as the Joseph Phillips Farm, is a 130-acre (53 ha) living open-air museum located north of Titusville in the Pleasant Valley section of Hopewell Township in Mercer County, New Jersey. The farm was added to the National Register of Historic Places on May 2, 1977, for its significance in agriculture and architecture. The farm was included in the Pleasant Valley Historic District on June 14, 1991.

Baldpate Mountain is a mountain located in the western part of Hopewell Township, Mercer County, New Jersey, near the Delaware River. A part of The Sourlands, it is the highest peak in Mercer County, and most of the mountain is protected within the county-owned Ted Stiles Preserve.

Brownsburg Village Historic District is a national historic district located at Brownsburg, Upper Makefield Township, Bucks County, Pennsylvania. The district includes 37 contributing buildings, 1 contributing site, and 2 contributing structures in the village of Brownsburg. Most of the buildings were built between 1810 and 1840, and reflective of the Italianate and Federal styles. The oldest building is the Beaumont Tavern House and tenement. Other notable buildings are the Grace Johnson House, Gilbert Tenement, Andrew Jamison House, and Slack Bungalow (c. 1920). Also in the district are structures related to the site of the Delaware Division of the Pennsylvania Canal.It was added to the National Register of Historic Places in 1994.

Smith Family Farmstead, also known as Riverside, is a historic home located at Upper Makefield Township, Bucks County, Pennsylvania. It was built in 1767, and is a 2+1⁄2-story, three bay by two bay, gable roofed stone dwelling. A one bay by two bay, stone and frame addition was built in 1945. Also on the property is a contributing two-story stone building used as a garage. It was the birthplace of U.S. Senator from Indiana Oliver H. Smith (1794-1859).It was added to the National Register of Historic Places in 1978.

Houghs Creek (Hough Creek) is a tributary of the Delaware River in Bucks County, Pennsylvania, contained wholly within Upper Makefield Township.

Pidcock Creek is a tributary of the Delaware River in Bucks County, Pennsylvania. Rising in Buckingham Township, it flows into the Delaware in Solebury Township after a short side trip within Upper Makefield Township.

The Thompson-Neely house is a historic house and farmstead in Solebury Township, Bucks County, Pennsylvania. It is part of Washington Crossing Historic Park, headquartered in nearby Washington Crossing. The oldest part of the house was built in 1702, according to the John Pidcock plaque. It was a temporary military hospital during the American Revolutionary War.

Washington Crossing State Park is a 3,575-acre (14 km2) New Jersey state park that is part of Washington's Crossing, a U.S. National Historic Landmark area. It is located in the Washington Crossing and Titusville sections of Hopewell Township in Mercer County, north of Trenton along the Delaware River. The park is operated and maintained by the New Jersey Division of Parks and Forestry. It is supported by the Washington Crossing Park Association, a friends group that works to preserve, enhance, and advocate for the park.This park area, together with Washington Crossing Historic Park on the Pennsylvania side, comprise the Washington's Crossing National Historic Landmark, which was listed on January 20, 1961, and added to the National Register of Historic Places on October 15, 1966.The park's natural area consists of 140 acres (0.57 km2) of mixed hardwood forests and fields that offer locations for hiking, picnics, nature walks and cross-country skiing. The Nature Center offers exhibits, displays, and educational programs for children, families and school groups. During warmer months, concerts and plays are held at the Washington Crossing Open Air Theatre, an outdoor theater with seating consisting of wooden benches. Goat Hill Overlook, located nearby in West Amwell Township in Hunterdon County, is administered by the New Jersey Division of Parks and Forestry as part of Washington Crossing State Park.

George Washington's crossing of the Delaware River, which occurred on the night of December 25–26, 1776 during the American Revolutionary War, was the first move in a surprise attack organized by General George Washington, the commander-in-chief of the Continental Army, against Hessian forces garrisoned at Trenton, who were German mercenaries hired by the British. After crossing the Delaware River, Washington and his troops successfully attacked the Hessian forces in the Battle of Trenton on the morning of December 26, 1776. The military campaign was organized in great secrecy by Washington, who led a column of Continental Army troops from today's Bucks County, Pennsylvania across the icy Delaware River to today's Mercer County, New Jersey in what was one of the Revolutionary War's most logistically challenging and dangerous clandestine operations. Other planned crossings in support of the operation were either called off or ineffective, but this did not prevent Washington from surprising and defeating the Hessian troops under Johann Rall. After prevailing in the Battle of Trenton, Washington and his Continental Army troops crossed the Delaware River again, returning to Pennsylvania with prisoners and military stores taken in the battle. Washington's army then crossed the river a third time at the end of 1776 under conditions made more difficult by the uncertain thickness of the ice on the river. They defeated British reinforcements under Lord Cornwallis at Trenton on January 2, 1777, and were also triumphant over his rear guard at Princeton the next day before retreating to winter quarters in Morristown, New Jersey. As a celebrated early turn in the ultimately victorious Revolutionary War, the unincorporated communities of Washington Crossing, Pennsylvania and Washington Crossing, New Jersey are both presently named in honor of Washington and the event.

Bowman's Hill Tower, (also known as Bowman's Tower), is a 125-foot-tall (38 m) stone tower located in Washington Crossing Historic Park in Bucks County, Pennsylvania. It is administered by the Pennsylvania Department of Conservation and Natural Resources. The tower was built on Bowman's Hill, which is on the Upper Makefield Township side of the border between itself and Solebury Township. The tower was erected in the 1930s as a memorial.

West Amwell 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 3,005, a decrease of 835 (−21.7%) from the 2010 census count of 3,840, which in turn reflected an increase of 1,457 (+61.1%) from the 2,383 counted in the 2000 census.West Amwell was incorporated as a township by an act of the New Jersey Legislature on April 6, 1846, when Amwell Township was split, also creating East Amwell Township at the same time. Portions of the township were taken to form Lambertville town on March 1, 1849. In 1896, the township annexed portions of Delaware Township, East Amwell Township and Raritan Township. The township was named for Amwell Township, which in turn was named for Great Amwell/Little Amwell, Hertfordshire in England.

Washington Crossing Historic Park is a 500-acre (2 km2) state park operated by the Pennsylvania Department of Conservation and Natural Resources in partnership with the Friends of Washington Crossing Park. The park is divided into two sections. One section of the park, the "lower park," is headquartered in the village of Washington Crossing located in Upper Makefield Township in Bucks County, Pennsylvania. It marks the location of George Washington's crossing of the Delaware River during the American Revolutionary War. The lower park includes 13 historic buildings including McConkey's Ferry Inn, where General George Washington and his aides ate dinner and made plans prior to the crossing. Among the historic buildings is a 20th-century barn that houses 5 replica Durham Boats. Durham boats were large, open boats that were used to transport pig iron along the Delaware River at the time of the Revolution and these boats, along with the ferries and others, were used to transport soldiers, horses, and equipment across the river on the night of December 25–26, 1776. The replica boats are used each year when the nighttime crossing is reenacted in the park. Located 4.5 miles away in Solebury Township, Bucks County, Pennsylvania, is the park's northern section, the "upper park." In its 100-acre area it contains (0.4 km2) Bowman's Hill Tower and the Thompson-Neely House, which was used as a military hospital during Washington's encampment in the area, and the graves of an estimated 40 to 60 soldiers who died there. The exact location of the graves is unknown, though they were partially unearthed during the construction of the nearby Delaware Canal in the early 19th century and during other nearby construction projects. Presently there are 23 memorial headstones as a reminder that the area is a gravesite. The lower park contains a visitor's center, which was renovated from July 2011 to March 2013. The newly renovated visitor's center was opened March 10, 2013. It features a small exhibition with some Revolutionary war artifacts, and an original letter written by George Washington while in the McConkey's Ferry Inn. The park also has obtained a full size digital copy of Emanuel Leutze's 1851 painting, Washington Crossing the Delaware, from the Metropolitan Museum of Art, that is hanging in the auditorium.