Answered

What happened to the treaties signed by the California government and the California tribes?
The Natives did not agree to the terms of the treaties, and they did not hold up their end of the deal.
The 49'ers pressured the government not to follow through with the terms of the treaties, and they were never passed on to Congress.
They were lost in a fire in the Senate archives.
The terms were met, and 8.5 million acres were given to the Native Americans.