So, why are the aboriginals now showing interest in the territory they ceded? From a random source:

The 1850 Robinson Huron Treaty says the following. "THAT for, and in consideration of the sum of two thousand pounds of good and lawful money of Upper Canada, to them in hand paid, and for the further perpetual annuity of six hundred pounds of like money, the same to be paid and delivered to the said Chiefs and their Tribes at a convenient season of each year, of which due notice will be given, at such places as may be appointed for that purpose, they the said Chiefs and Principal men, on behalf of their respective Tribes or Bands, do hereby fully, freely, and voluntarily surrender, cede, grant, and convey unto Her Majesty, her heirs and successors for ever, all their right, title, and interest to, and in the whole of, the territory above described, save and except the reservations set forth in the schedule hereunto annexed; which reservations shall be held and occupied by the said Chiefs and their Tribes in common, for their own use and benefit." That was a lump sum of two thousand pounds and a perpetual annuity of six hundred pounds British money. ... So, why are the aboriginals now showing interest in the territory they ceded?

Well anonymous and others who wonder ... wonder no more. Look in the treaty for the answer: "a lump sum of two thousand pounds and a perpetual annuity of six hundred pounds." Now where is the government's accounting for those funds? Were they ever paid? Hmm? (Hint: Not bloody likely!)