[2] Elzevir Township (formed circa 1869,[3] location of a major gold strike[4]) and Grimsthorpe Township (formed 22 February 1867 during the local gold rush)[5] had been administered as one entity since before 1968[6] until amalgamation into the Municipality of Tweed.

[8] Immediately east of the Village of Tweed is Stoco Lake, home to a popular and uncommon sport-fish, the muskellunge or Muskie (Esox masquinongy).

From the 1880s, the Canadian Pacific Railway's Havelock Subdivision passed through Tweed to Glen Tay and Smith Falls.

Besides the village proper of Tweed, the Municipality of Tweed comprises a number of villages and hamlets, including the following communities such as Actinolite, Bogart, Buller, Chapman, Cosy Cove, Coulters Hill, Duff Corners, East Hungerford (44°30′07″N 77°09′04″W / 44.502°N 77.151°W / 44.502; -77.151), Elzevir, Farrell Corners (44°27′07″N 77°08′02″W / 44.452°N 77.134°W / 44.452; -77.134), Hungerford, Larkins, Lime Lake, Lodgeroom Corners, Lost Channel (44°25′08″N 77°18′58″W / 44.419°N 77.316°W / 44.419; -77.316), Marlbank, Moneymore, Otter Creek, Queensborough, Stoco, Sulphide, and Thomasburg (44°23′20″N 77°20′45″W / 44.388961°N 77.345896°W / 44.388961; -77.345896 [9]) Approximately 30% of the population resides in the Village of Tweed, the only urban center.

The remainder of the Municipality of Tweed consists of a large rural area which reaches from Wadsworth Lake in the north to Roslin in the south.

When a fire was spotted in the forest a towerman would get the degree bearings from his respective tower and radio back the information to headquarters.

When one or more towermen from other towers in the area would also call in their bearings, the forest rangers at headquarters could get a 'triangulation' read and plot the exact location of the fire on their map.