locations now provide public access to the lake. Two lighthouses were located on the shore of Lake Memphremagog. They were built in 1878 and no longer exist. Chateau de Silva Lighthouse, located roughly midway between Knowlton's Landing and Perkins Landing, Lead Mines Lighthouse, located near Leadville, at the foot of Mount Owl's Head. The covered bridge crossing Mud Creek was listed as a cultural heritage site in 2008. The bridge was built in 1896 and is of the "Town Simple" type. A round barn, built in 1911 for Robert Jersey, is situated in Mansonville. The structure and site were listed as a cultural heritage site in 2009. Highwater was the site of the Space Research Corporation where Gerald Bull performed ballistics research. Portions of the 1998 movie "Free Money" were filmed in Vale Perkins, Highwater, Mansonville, and near Mount Owl's Head. Some exterior scenes for the third season of the Quebec police thriller La Faille (2022) were filmed in Mansonville on September 21 and 22, 2021. The town hall served as the site of the series town "Applegrove" police station. The closed Restaurant Soleil Rouge served as the series establishment "Chez Karen". Other scenes were filmed on Rue des Pins, Rue Principale, and in Parc Mansonville. The episodes were aired in November 2022 on Club Illico. Geography The eastern boundary of the township is the western half of Lake Memphremagog. The southern boundary is the international border with the United States of America. The western boundary is formed by the Sutton Mountains. The elevation of Lake Memphremagog is . The maximum recorded depth is , which is located north of Mount Owl's Head and between Perkins Landing and Knowltons Landing, opposite Jewett Point (at approximately ). The territory of the township is traversed by the north to south flow of the North Branch of the Missisquoi River. It confluences in Highwater with the South Branch of the Missisquoi River, forming the Missisquoi River which disembogues into Lake Champlain at Missisquoi Bay. The township is dotted with many mountains. Among the more prominent peaks are: Peewee, with a height of and located at Elephantis (also called Elephantus), with a height of and located at Hog's Back, with a height of and located at Owl's Head, with a height of and located at Hawk, with a height of and located at Bear, with a height of and located at Potton is well