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About the Area

According to Statistics Canada, the county has a total area of 3,033.82 square kilometres (1,171.36 sq mi). It is located in the subregion of Southern Ontario named Eastern Ontario. Geologically, the northern part of the county is in the Canadian Shield and the southern part is in the Great Lakes Basin. The county has two large rivers, the Mississippi and Rideau, each of which empty into the Ottawa River.

Most of the county is covered in temperate deciduous forest, except for cleared farmland. The dominant forest trees are maple, oak and beech. Some of the higher ridges in the west of the county were once natural fire barrens. There are over 1,200 species of plants in the county flora. Seventeen areas have been documented as outstanding examples of plant diversity; these include Blueberry Mountain, Burnt Lands Alvar, Clay Bank Alvar, Christie Lake, Murphy's Point ProvincialPark and Almonte Town Park.

The county also has 47 provincially significant wetlands. Some of the largest are Blueberry Marsh (north of Perth), the Innisville Wetlands (upstream of Mississippi Lake) and the Goodwood Marsh south of Carleton Place. In addition to David White's list of 17 areas of plant diversity, Paul Keddy lists 17 special places in the county. Both lists have the Burnt Lands Alvar, the Christie Lake Barrens and Murphy's Point Provincial Park. Keddy's list adds areas such as Playfairville Rapids, Lavant/Darling Spillway and the Carleton Place Hackberry stand.

Also of interest is an old shoreline which crosses the county diagonally, approximately from Almonte in the northeast to Perth in the southwest. This shoreline was formed about 12,000 years ago near the end of the last ice age when much of the Ottawa Valley was inundated by the Champlain Sea. Many areas below this old shoreline are flat clay plains, with occasional outcrops of gneiss or limestone ridges. Some of the distinctive southern animals in the county include five-lined skinks (Ontario's only species of lizard), black rat snakes and southern flying squirrels.

For more information on Lanark County please visit Wikipedia at http://en.wikipedia.org/wiki/Lanark_County or the Lanark County website at http://www.lanarkcounty.ca/ 

Beckwith Township Township of Montague Tay Valley Township Town of Mississippi Mills Town of Carleton Place Township of Lanark Highlands Township of Drummond North Elmsley Town of Perth Town of Smiths Falls