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Local History - Maps
Ontario Locator - use this site to find places in the province of Ontario
The Canadian County Atlas Digital Project - Searchable 1880 Map of Ontario Counties
Rare Canadian Maps Index - University of Toronto
Prescott County Map at Archives of Ontario

The following map comes from Mariages du comté de Prescott and shows each of the Catholic parishes & the year they were established.
Map of Ottawa District and surrounding counties. Published in Smiths's Gazetteer. Toronto: Thomas Maclear, 1851.
Copied from D. Walker & F. Stratford-Devai's "The Marriage Registers of Upper Canada/Canada West. Vol.6: Ottawa District 1816-1853".

Mapquest map fpr Prescott County area, with rough county lines added by Tiffany (ie Ettyville is in Russell, while Lemieux is in Prescott):
Fauteux Project and Domaine Chartrand are actually housing projects, not towns.