She has been trying desperately to get help from the Canadian government to return home.'I thought it was a joke': Ontario woman told to reverse changes to heritage home An Ontario woman said she didn’t know her home was in a heritage district in Markham when she rebuilt it after it burned down.Now, the city is asking her to reverse the changes.Cleanup of former gold mine in Northwest Territories to cost more than $4 billion Cleanup of one of the most contaminated sites in Canada is estimated to cost taxpayers more than four times what was initially expected.The Treasury Board of Canada recently approved a new $4.38-billion cost estimate for the remediation of Giant Mine, a former gold mine that operated from 1948 to 2004 within Yellowknife city limits."