Black Rock State Park

Thomaston High School is a public school for grades 7 through 12 in Thomaston, Connecticut. The school has an enrollment of about 350 students.

Mattatuck State Forest is a Connecticut state forest spread over twenty parcels in the towns of Waterbury, Plymouth, Thomaston, Watertown, Litchfield, and Harwinton. The Naugatuck River runs through a portion of the forest. The largest section of the forest is located about 1 mile (1.6 km) north of Waterbury. The Leatherman's Cave, named after the vagabond Leatherman of the late 19th century, is located in Thomaston near the Mattatuck Trail, 1/4 mile west of the junction with the Jericho Trail.

Thomaston is a town in Litchfield County, Connecticut, United States. The town is part of the Naugatuck Valley Planning Region. The population was 7,442 at the 2020 census. The urban center of the town is the Thomaston census-designated place, with a population of 1,928 at the 2020 census.

The Reynolds Bridge in Thomaston, Connecticut is an open-spandrel concrete arch bridge carrying Waterbury Road (unsigned State Road 848) over the Naugatuck River. Built in 1928, it is one of a small number of surviving open-spandrel bridges in the state. It was listed on the National Register of Historic Places in 2004.

The Roderick Bryan House is a historic house at 867 Linkfield Road in Watertown, Connecticut. Built about 1820, it is a well-preserved example of a rural Cape style farmhouse. It was listed on the National Register of Historic Places in 2000.

The Hose and Hook and Ladder Truck Building is a historic former firehouse on Main Street in Thomaston, Connecticut. Built in 1882, it is a fine example of Late Victorian civic architecture in brick. It was listed on the National Register of Historic Places on January 4, 1982. After serving as a firehouse for about a century, it has been converted into an art gallery.

Trinity Church is a historic episcopal church at 160 Main Street in Thomaston, Connecticut. Built in two stages, 1871 and 1880, to a design by Richard M. Upjohn, it is a good example of Gothic and Stick Style architecture. The church was listed on the National Register of Historic Places in 1984. It is now part of a merged parish with St. Peter's of Plymouth.

The Thomaston Opera House is a historic performance venue and the town hall of Thomaston, Connecticut. Located at 153 Main Street, it was built in 1883-85, and is a good local example of Romanesque architecture. The theater in the building has served as a performance and film venue since its construction. It was listed on the National Register of Historic Places in 1972. The opera house's principal tenant is now the Landmark Community Theatre.

Northfield is an unincorporated village in the town of Litchfield, Litchfield County, Connecticut. The village of Northfield resides in the southeastern corner of Litchfield. Northfield shares an indefinite northern boundary with the rest of Litchfield proper, this boundary is roughly co-terminus with that of the Northfield Fire District. The village is bordered on the east by the town of Harwinton, on the south by the town of Thomaston, and on the west by the town of Morris. As of the 2010 Census, 1,378 residents reside in the village of Northfield. As part of the town of Litchfield, students in Northfield attend Litchfield Public Schools. It is the home of the former Northfield Knife Company, which was founded in 1858 and ceased operations in 1926. The factory resided directly across the street from what is known as Knife Shop Dam. The foundations of the original knife factory still remain, and were listed on the National Register of Historic Places in 1997. Both Northfield Pond and the Knife Shop Dam are part of Humaston Brook State Park. This undeveloped 141 acre state park provides visitors with both hiking and fishing opportunities.

The J. Howard Catlin House was a historic house at 14 Knife Shop Road in Litchfield, Connecticut. Built about 1879, it was a distinctive vernacular example of Carpenter Gothic architecture. It was built for J. Howard Catlin, one of the owners of the Northfield Knife Company, whose plant was located just to the east. The house was listed on the National Register of Historic Places; it was subsequently demolished to make way for a fire station.

The Railroad Museum of New England is a railroad museum based in Thomaston, Connecticut. Through its operating subsidiary known as the Naugatuck Railroad, the museum operates excursion and freight trains on the Torrington Secondary between Waterville and Torrington. The Railroad Museum of New England name and trademark was adopted in 1987, as a result of reassessing the Connecticut Valley Railroad Museum's goals and visions (CVRM had been founded in the mid-1960s). Home to one of the largest collections of preserved historic railroad equipment in New England, RMNE and its predecessor organizations have been active since the 1960s.

Humaston Brook State Park is an under-developed day use state park located in the village of Northfield, Connecticut. It preserves a stretch of Humaston Brook, a tributary of the Naugatuck River. Its major feature is Northfield Pond, created by damming in the 19th century. It is commonly known by residents as Knife Shop Pond. It also includes the foundations of the former Northfield Knife Company located along the banks of the brook below the dam, which was the location of one of Litchfield's largest 19th-century employers. Activities in the park include hiking and fishing.