A group of environmental organizations has issued a warning  to the Ontario government  about  the future “Rouge National Urban Park.”

A published report says  the conservation group wants  five conditions in place-before the Ontario government signs away large tracts of land on Toronto’s eastern edge to the federal government.

The future national park  cannot  be established until Ontario officially  grants  land to Ottawa and Parks Canada.

The group wants an expanded study area of the park:  from  57 to 100 square kilometres.

Toronto City Council unanimously adopted a motion last month that  uses similar  language and  demands the area be  protected and flourishing as an ecosystem  in perpetuity.

The  letter also urges the province to get a guarantee from the Harper  government  that all farming in the park will be  sustainable. More than 60 per cent of the future park is slated to be leased to farmers and closed to the public.