Day Pond State Park

The Henry Champion House is a historic house on Westchester Road in Colchester, Connecticut. Built in 1790, it is a good local example of Federal period architecture, designed by William Sprat, a prominent early architect. It was built by Colonel Henry Champion, a veteran of the American Revolutionary War for his son, also named Henry. The house was listed on the National Register of Historic Places in 1972.

The River Road Stone Arch Railroad Bridge is a historic bridge carrying the former Air Line Railroad right-of-way over River Road in Salmon River State Forest in Colchester, Connecticut. Built in 1887, it is a well-preserved example of a period masonry railroad bridge, built as part of a state-mandated program for the reduction of the number of grade crossings in the state. The bridge was listed on the National Register of Historic Places in 1986.

The Blackledge River Railroad Bridge is a Warren truss bridge that was built on the site of a c. 1870 railroad bridge. The original bridge was completed and opened by August 3, 1877. Likely built by the Colchester Railway Company, the bridge was part of the 3.59 miles (5.78 km) of track from Colchester, Connecticut, to Turnerville (now known as Amston, Connecticut). The line was leased to the Boston and New York Air-Line Railroad and reported improvement in 1879 and a new 110-foot long (34 m) iron bridge by 1881. The line was leased to the New York, New Haven and Hartford Railroad in 1882. After dominating the region, the New York, New Haven and Hartford Railroad petitioned for changes to the Air Line and the approval came on July 7, 1911. The historic Blackledge River Railroad Bridge was constructed c. 1912 as an improved version of the previous bridge. The new 108-foot long (33 m) bridge integrated the previous abutments into the design and was elevated a further 5 feet (1.5 m) above the Blackledge River. The railroad bridge was abandoned in the 1960s and sold to the Connecticut Department of Transportation. The bridge was added to the National Register of Historic Places on July 31, 1986. The bridge is now located in Airline State Park. By 2007, a wooden pedestrian bridge was built atop the railroad bridge and crosses over the Blackledge River.

Comstock's Bridge, also known as the Comstock Covered Bridge, is a covered bridge in Connecticut, connecting the town of East Hampton to the town of Colchester, spanning the Salmon River. First built in 1840, but entirely replaced in 1873, it is one of only three historical covered bridges in the state. It is open to pedestrian traffic in a small park off Comstock Bridge Road. The bridge was listed on the National Register of Historic Places on January 1, 1976.

The Lyman Viaduct is a buried railroad trestle built over Dickinson Creek in Colchester, Connecticut in 1873. Along with the nearby Rapallo Viaduct, it is one of the few surviving wrought iron railroad trestles from the first generation of such structures. It was built for the Boston and New York Air-Line Railroad, whose successor, the New York, New Haven and Hartford Railroad (NYNH&H), buried it in sand rather than replacing it with a stronger structure. The viaduct was added to the National Register of Historic Places in 1986, since it is capable of providing detailed information about construction methods of the period. The viaduct now carries the multiuse Air Line State Park Trail.

Salmon River Airfield (FAA LID: 9B8) is an American airport located in Colchester, Connecticut, United States.

The Jeremy River, named after Jeremy Adams, begins at a drainage just north of Holbrook Pond about 1.5 miles (2.4 km) east of Gilead, Connecticut and runs for 10.7 miles (17.2 km) to the Salmon River in Colchester, Connecticut. There are many swamps and marshes along the banks of its northern end, the largest of which is 1.5 miles (2.4 km) long. There is a popular paddling route along the Jeremy River that begins at Old Hartford Road just north of Connecticut Route 2 about 3 miles (5 km) west-northwest of Colchester. The 2.5-mile (4.0 km) route has solid Class II whitewater throughout the run and ends at the Salmon River; however, many paddlers continue along the Salmon River paddling route. The Norton Paper Mill is located on Jeremy River (in Colchester, Connecticut). It operated from 1895 until the early 1960s, before becoming abandoned by the early 1980s, and falling into disrepair. A fire engulfed the building on July 8, 2012, consuming most of the remaining combustibles (the largely-intact walls being made of brick). The property was purchased by the Town of Colchester in 2015 (for $1), with plans to remove the building and redevelop the site as a public park. The Nature Conservancy in Connecticut removed the adjacent dam in 2016.

Jeremy Adams, also known as Jeremiah Adams (c.1604/5—August 11, 1683), was one of the first settlers of Hartford, Connecticut. He was also the founder and first proprietor of Colchester, Connecticut, which was established on land owned by Adams, known as "Jeremiah's Farme".

Jeremy's Back is a mountain ridge in New London County, Connecticut. It is named after Jeremy Adams, one of the original founders of Hartford, CT. It is located near the Jeremy River (also named after Jeremy Adams), a favorite paddling destination in the area.

The Wickham Road Historic District encompasses a well-preserved 18th-century rural streetscape in East Haddam, Connecticut. Included in the district are three houses built c.1735, c.1738, and c.1760, their outbuildings, remnants of another 18th-century house, and remnants of a period sawmill. The area is significant as a visual reminder of what the region might have looked like prior to the advent of industrialization in the 19th century. The district was listed on the National Register of Historic Places in 1996.