Emmanuel Church (Killingworth, Connecticut)

The Parmelee House is a historic house at 4 Beckwith Road in Killingworth, Connecticut. It was built about 1770 for a member of one of the area's founding families, and is architecturally important as an example of a farm outbuilding converted to a residence during the 18th century. It was listed on the National Register of Historic Places in 2007.

Oak Lodge is a historic recreational building, located on the west side of Schreeder Pond in Chatfield Hollow State Park in Killingworth, Connecticut. Built in 1937, it is one of Connecticut's finest examples of construction by crews of the Civilian Conservation Corps (CCC). It, along with Schreeder Pond and other CCC-built park features, was listed on the National Register of Historic Places in 1986.

Chatfield Hollow State Park is a public recreation area occupying 412 acres (167 ha) that lie adjacent to Cockaponset State Forest in the town of Killingworth, Connecticut. The state park offers hiking trails, a swimming beach, trout fishing, mountain biking, rock climbing, and picnicking areas. Park attractions include 6.67-acre (2.70 ha) Schreeder Pond, Indian caves, historic sites, a restored water wheel, and a reproduction covered bridge. The park is managed by the Connecticut Department of Energy and Environmental Protection.

Killingworth is a town in Middlesex County, Connecticut, United States. The town is part of the Lower Connecticut River Valley Planning Region. The population was 6,174 at the 2020 United States Census.

Bridge No. 1132 is an open-spandrel concrete arch bridge carrying the two-lane Connecticut Route 80 across the Hammonasset River, between Killingworth and Madison, Connecticut. Built in 1934, it is one of a small number of open-spandrel concrete bridges in the state, and was noted for its aesthetics at the time of its construction. It was listed on the National Register of Historic Places in 2004.

The Chatfield Trail is a 4.6-mile Blue-Blazed hiking trail located within the town of Killingworth, Connecticut. The northern trailhead is directly across from Chatfield Hollow State Park on Route 80. There is a good parking area outside the park's entrance. The trailhead is well marked on the South side of Route 80 just across the street from the park's entrance. The one-way route is 4.6 miles to the southern trailhead on River Road though there is also a 0.75-mile alternate trail that loops off the main trail. There is also a second northern trailhead entrance that is located on the south side of Route 80, about 0.3 miles west of the park entrance where there is a rough pullover area for 4 or 5 cars. From this old trailhead you can take a short 0.1-mile Blue and White trail east to the Blue-Blaze trail. The northern section of the trail is located within Cockaponset State Forest. The southern sections of the trail pass near Deer Lake Camp and through privately owned property ending at River Road, just west of the intersection of Papermill Road and River Road. River Road has a small pullover for 1 or 2 cars that can be used to access the southern trailhead.

Hidden Lake is one of five villages located within the town of Haddam, Connecticut. It is governed by the bylaws of the Hidden Lake Association. Hidden Lake is located on the Haddam USGS quad topological map. The latitude and longitude coordinates for the lake are 41.4220, -72.5687 and the altitude is 515 feet (157 meters).

Deer Lake is a dammed lake in Killingworth, Connecticut, United States.It was the site of the BSA camp Deer Lake Scout Reservation operated by the Connecticut Yankee Council and its predecessors. In 2022 the site was sold to Pathfinders, Inc., a non-profit organization which intends to continue to operate the property as a camp.

The Hammonasset Paper Mill Site is a historic industrial archaeological site off Green Hill Road in Killingworth and Madison, Connecticut. The site contains the remains of a paper mill built in 1865 and operated until 1890. The site, listed on the National Register of Historic Places in 1996, is owned by a local land trust, and is accessible by hiking trails.The site has components located on either side of the Hammonasset River, which provided power for the mill's operation and serves as the town boundary between Madison and Killingworth. Surviving elements of the mill complex include the partial remains of a stone dam on the east side, and the stone mill foundation and raceways on the west side. The mill was built about 1890, and produced strawboard, a material used for boxes prior to the introduction of wood pulp-based paper. This endeavour lasted until 1890, and was followed for sometime by a lumber mill.

The Mattabesett Trail is a 62-mile (100 km) long, hook-shaped blue-blazed hiking trail in central Connecticut and a part of the New England National Scenic Trail. One half of the trail follows the high traprock ridges of the Metacomet Ridge, from Totoket Mountain in Guilford, Connecticut, to Lamentation Mountain in Meriden, Connecticut, from south to north. This ridge is known for its biodiversity, miles of scenic cliffs, and rugged hiking. The second half of the trail extends north from Guilford to Middletown, Connecticut, and ends at the Connecticut River. Here, the trail follows an upland of metamorphic rock with occasional views and dense forests. Important features along the trail include Lamentation Mountain, Chauncey Peak, Higby Mountain, Besek Mountain, Fowler Mountain, Trimountain, Pistapaug Mountain, Totoket Mountain, the Broomstick Ledges, Seven Falls, and Coginchaug Cave. The Metacomet Trail continues north from Lamentation Mountain where the Mattabesett Trail leaves off. The geology, ecology, and landscape of the trail are similar to that of the Metacomet-Monadnock Trail to the north in Massachusetts. In 2000, the United States Congress authorized the National Park Service to research a new National Scenic Trail now called the New England National Scenic Trail in southern New England, which includes the Mattabesett Trail as well as the Metacomet-Monadnock Trail and the Metacomet Trail. On March 30, 2009 President Barack Obama signed the Omnibus Public Land Management Act of 2009 establishing the New England National Scenic Trail (and two other national scenic trails).The combination of the Metacomet, Monadnock and Mattabesett trails is also often referred to as the 3-M, MMM or Metacomet-Monadnock-Mattabesett trail. The New England National Scenic Trail will eventually include all or almost all of the MMM trails as well as a proposed extension trail from the southernmost point on the Mattabesett Trail through Guilford, Connecticut to the northern shore of Long Island Sound.

Millers Pond State Park is a public recreation area lying adjacent to Cockaponset State Forest in the towns of Durham and Haddam, Connecticut. The park's central feature is 33-acre (13 ha) Millers Pond, whose principal source of water is large springs that create a body of unpolluted water excellent for trout and smallmouth bass. The park offers fishing, hiking, mountain biking, and hunting.

The Shuttle Meadow Formation is a Mesozoic geologic formation in the Hartford Basin in Connecticut and Massachusetts, USA. Insect fossils of Mormolucoides articulatus and dinosaur remains are among the fossils that have been recovered from the formation; Coelophysis sp.