Thompson, Connecticut

North Grosvenordale ( GROHV-nər-dayl) is a village and census-designated place (CDP) in the town of Thompson in Windham County, Connecticut, United States. The population was 1,530 at the 2010 census. The core of the village is listed as the North Grosvenordale Mill Historic District on the National Register of Historic Places. The historic area around the cotton mill was listed in 1993 and is located on Riverside Drive (Route 12), Buckley Hill Road, Floral Avenue, Market Lane, and Marshall, Central, River, and Holmes Streets.

Tourtellotte Memorial High School is located in North Grosvenordale, Connecticut, a village within the town of Thompson, Connecticut.

The Thompson Hill Historic District encompasses the historic village center of Thompson, Connecticut. The district covers 550 acres (220 ha), whose central focus is the Thompson Center Green, laid out when the town was established in 1735. Thompson Hill was the town's early civic and economic center, later supplanted by industrial villages, and retains well-preserved architecture from the 18th and early 19th centuries. The district was listed on the National Register of Historic Places in 1987.

The Cottage House, formerly known as the White Horse Inn and Vernon Stiles Inn, is a historic bed and breakfast located in Thompson, Connecticut, United States.

Marianapolis Preparatory School is a private, co-educational, Catholic high school located in Thompson, Connecticut.

The George Pickering Nichols House is a historic house in Thompson, Connecticut. Built about 1846, it is a well-preserved example of rural Greek Revival architecture. It was listed on the National Register of Historic Places in 1991.

West Thompson Lake is a 200-acre lake in Thompson, Windham County, Connecticut.A dam was constructed in 1965 by the United States Army Corps of Engineers to create the lake. It impounds the Quinebaug River for flood control and seasonal storm water management. The dam is owned and operated by the Corps of Engineers.The dam is one of the six flood control structures built on the river. This network of dams helps control flooding all the way from the upstream tributaries of the Thames River to the Long Island Sound. The West Thompson Dam was constructed in 1965. It cost 6.7 million U.S. dollars.The West Thompson Lake has a total storage capacity of 342 million gallons of flood water.

The Chaubunagungamaug Reservation refers to the small parcel of land located in the town of Thompson, Connecticut, close to the border with the town of Webster, Massachusetts and within the bounds of Lake Chaubunagungamaug (Webster Lake) to the east and the French River to the west. The reservation is used by the descendants of the Nipmuck Indians of the previous reservation, c. 1682–1869, that existed in the same area, who now identify as the Webster/Dudley Band of the Chaubunagungamaug Nipmuck. Together with the Hassanamisco Nipmuc, both have received state recognition under the Massachusetts Commission on Indian Affairs.The reservation only consists of 2.5 acres (1.0 hectare), and does not support a permanent population. It does serve as a meeting place and cultural center for Webster/Dudley Band of the Chaubunagungamaug Nipmuck. The land is also used as a place for the reinterment of local Native American remains. The tribe, and its reservation, are recognized in Massachusetts, but both lack recognition in Connecticut and at the federal level.

The French River is a river in south-central Massachusetts and northeastern Connecticut, USA. The river rises near Leicester, Massachusetts, and flows generally southwards through Auburn, Oxford, and along the town line between Webster and Dudley; it then enters Connecticut where it joins the Quinebaug River at Thompson, just northeast of Putnam. The Quinebaug in turn flows into the Shetucket River and ultimately the Thames River to empty into the Long Island Sound. The river's total length is 25.3 miles (40.7 km), of which 18.8 miles (30.3 km) are in Massachusetts. It drains a watershed area of about 95 square miles (250 km2), containing 67 lakes and ponds, 38 of which cover at least 10 acres (4.0 ha). Only one lake in its basin is larger than 500 acres (200 ha), namely Lake Chaubunagungamaug (Webster Lake) in Webster, Massachusetts at 1,195 acres (484 ha). French River was so named from a settlement of French Protestants in Oxford.

Mechanicsville is an unincorporated community and census-designated place (CDP) in the southern part of the town of Thompson in Windham County, Connecticut, United States. It is bordered to the north by North Grosvenordale and to the south by Putnam. Connecticut Route 12 (Riverside Drive) runs the length of the community, along the east side of the French River. Mechanicsville was first listed as a CDP prior to the 2020 census.A portion of the Air Line State Park Trail passes through Mechanicsville, along with the Providence and Worcester Railroad.

The Hezekiah S. Ramsdell Farm was a historic farm in Thompson, Connecticut. It was located on what was once known as Ramsdell Road, but is now a hiking trail on the lands surrounding West Thompson Reservoir. The property was made famous by a standoff between the United States Army Corps of Engineers (USACE) and Alice Ramsdell, the feisty owner of the property who refused to leave after USACE acquired it by eminent domain as part of a flood control project in the 1960s. The dispute, highlighted by an incident in which Mrs. Ramsdell supposedly met government officials holding a shotgun, was ended when the government acquiesced to her demand to stay on the property. The farm was added to the National Register of Historic Places in 1990.

Cobble Island is an inhabited island located in Lake Chaubunagungamaug in Webster, Massachusetts. The home on the island dates back to before 1922. There is a large rock that sits at the eastern side of the island. The massive boulder is widely recognized among the town's natives and is often considered Webster's greatest fishing spot. On the island's western side there is a small cove that is often inhabited by an LA-4-200 Lake Buccaneer.