The Queen and Prince Philip spent the last lunch on their current tour in the company of 50 distinguished Canadians.

Those invited to Monday's meal with Gov. Gen. Adriennne Clarkson at Rideau Hall represented a Canadian accomplishment for each year since the Queen ascended to the throne in 1952.

Authors Michael Ondaatje and Doris Anderson, Nisga'a Chief Joe Gosnell, filmmaker Atom Egoyan, former Canadian UN commander Romeo Dallaire and Quebecer Paul Gerin-Lajoie sat at the Queen's table.

After lunch, the Queen planted a tree at Rideau Hall to commemorate her Golden Jubilee.

In the late afternoon, the Queen and Prince Philip attended a private reception with members of the Royal Commonwealth Society.

Her first public event Monday was a visit to the RCMP's equestrian centre, where she presented the force with a four-year-old mare.

While the Queen was shown a shortened version of the famous musical ride, Prince Philip visited the nearby Canada Aviation Museum.

On Monday morning the Queen met with Canadian Alliance Leader Stephen Harper. He said he was impressed by how well informed the Queen is about Canada.

Monday was the Queen's last full day in Canada.

The tour started at Iqaluit Airport, Nunavut, on Oct. 4.